Keysight Technologies E8402A User And Service Manual

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75000 Series C

User and Service Manual

Keysight E8402A, E8404A

VXI Mainframes

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Page 1 75000 Series C User and Service Manual Keysight E8402A, E8404A VXI Mainframes...
Page 3: Declaration Of Conformity
WITHOUT NOTICE, IN FUTURE EDI- without prior agreement and written con- www.keysight.com/find/E8402A TIONS. FURTHER, TO THE MAXIMUM sent from Keysight Technologies, Inc. as EXTENT PERMITTED BY APPLICABLE (product-specific information and sup- governed by United States and interna- LAW, KEYSIGHT DISCLAIMS ALL WAR- port, software and documentation tional copyright laws.
Page 4: Safety Information
If necessary, return instrument chassis and cover must be safe operating conditions, modules the product to a Keysight Technologies connected to an electrical ground to should not be operated beyond the full Sales and Service Office for service and minimize shock hazard.
Page 5 Safety Symbols A CAUTION denotes a hazard. It calls attention to an operating pro- cedure or practice, that, if not cor- rectly performed or adhered to could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated condi- tions are fully understood and met.
Page 7: Table Of Contents
Contents 1 Getting Started Product Overview ..........15 Preparing Your VXI System for Use .
Page 8 3 Programming the Enhanced Monitor Understanding SCPI Commands ........45 Common Command Format .
Page 9 HISTory:TEMPerature:CMAXimum? <slot> HISTory:TEMPerature:CMINimum? <slot> ......87 HISTory:TEMPerature[:HISTogram]? <slot>[,MIN|MAX] ....89 HISTory:TEMPerature:MAXimum? <slot>...
Page 10 STATus:QUEStionable:TEMPerature:LIMit <slot>,<value1>[,<value2>[,<value3>]] STATus:QUEStionable:TEMPerature:LIMit? <slot>[,MIN|MAX] ..144 STATus:QUEStionable:UMCounter:TINTerval <time> STATus:QUEStionable:UMCounter:TINTerval? ..... . 146 STATus:QUEStionable:UMCounter:TREMaining? .
Page 11 SYSTem:HELP:HEADers? ........183 SYSTem:MODel? .
Page 12 Replacing the Enhanced Monitor Controller Board ....269 Replacing the Keysight E8402A Power Supply ..... 270 Replacing the Keysight E8404A Power Supply .
Page 13 Replacing the Enhanced Monitor Display Lamp ....273 Replacement Power Cords ........274 A Keysight E8402, E8404A Product Specifications Product Descriptions .
Page 14 B Rack Mounting and Option Installation Chapter Overview..........291 Rack Mounting the Keysight E840xA Mainframe .
Page 15: Getting Started
Keysight E8402A, E8404A C-Size Mainframes User and Service Guide Getting Started This chapter contains general information on the operating features of the E8402A and E8404A C-Size VXI mainframes. The following table lists the major differences between these two mainframes: Power Supply Enhanced...
Page 16: Preparing Your Vxi System For Use
(facing the mainframe) and exhausted out the left side. When placing the mainframe on a work bench or if the mainframe is rack mounted, provide at least a one inch clearance at the back and sides to allow for proper air flow. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 17: Connecting The Mainframe To A Permanent Earth Ground
WIRE LUG STRIPE TOOTHED WASHERS BACK COVER PERMANENT EARTH GROUND CONNECTION LOCATION Figure 1-1 Connecting an Keysight E840xA Mainframe to a Permanent Earth Ground (Keysight E8404 shown, Keysight E8402 is similar) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 18 Risque de Choch èlectrique. Si la frèquence du secteur est AVERTISSEMENT supèrieure à 66 Hz, relier la borne de masse du chassis à une prise de terre fixe. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 19: Installing Vxi Instruments
All instruments within the VXI mainframe are grounded through the mainframe chassis. During installation, tighten the instrument's retaining screws to secure the instrument to the mainframe and to make the ground connection. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 20: Installing C-Size Instruments
All instruments within the VXI mainframe are grounded through the mainframe chassis. During installation, tighten the instrument's retaining screws to secure the instrument to the mainframe and to make the ground connection. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 21: Installing A- And B-Size Instruments
All instruments within the VXI mainframe are grounded through the mainframe chassis. During installation, tighten the instrument's retaining screws to secure the instrument to the mainframe and to make the ground connection. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 22: Configuring Your Mainframe
LADDR 32+64+128=224 CLOSED = Switch Set to 1 (ON) OPEN = Switch Set to 0 (OFF) RS-232 +5V EXT Figure 1-4 Rear panel of the Keysight E8402 and E8404 VXI Mainframes Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 23: Rs-232 Interface
RS-232 interface) while the mainframe is powered down (standby mode). This requires a stable 5 volt supply capable of 1.5A amps maximum (500mA typical, refer to specifications in Appendix A). Refer to Figure 4. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 24: Using The Remote Power-On Pins
Switch BACKPLANE Figure 1-5 Remote Standby Switch Wiring. Pin 18 is ground in the Keysight E8402 and E8404 mainframes. Therefore, you only need to ground pin 5 to turn the mainframe Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 25: Disabling The On/Stdby Switch
Separate the resistor from the board by gently pressing the tips of the soldering irons together. 4 Save the resistor in order to re-enable the On/Stdby switch. Again, heat damage may prevent the resistor from being re-installed. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 26: Mainframe Options And Accessories
Support Rail for Standard Rack Mount Adapter or Flush Rack Mount Kit Keysight E3664A Support Rail for VXIplug&play (VPP-8) Compatible Rack Mount Kit Keysight E3663A Rack Slide Kit for Standard Adapter Kit or VXIplug&play (VPP-8) Compatible Keysight Rack Mount Kit 1494-0411 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 27: Using The Enhanced Monitor
Keysight E8402A, E8404A C-Size Mainframes User and Service Guide Using the Enhanced Monitor The Enhanced Monitor on the front panels of the Keysight 840xA mainframes allow you to monitor power supply voltages, mainframe temperatures, fan operation, and backplane activity. Figure 1 shows the mainframe front panel.
Page 28 Diagnostic Refer to “Diagnostic Connector” on page 43. Connector Display and Refer to “Using the Enhanced Monitor” on page 29 Keypad Figure 2-1 Keysight E8402A and E8404A Enhanced Monitoring Front Panel Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 29: Using The Enhanced Monitor
° -- Limit may be set in actual temperature (default is +65 ° and as temperature rise above ambient (default is +15 -- Limits are restored from non-volatile RAM at power-on. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 30 -- In the Variable mode, if the power supply temperature exceeds an expected level, the fan speed increases to maximum. -- In the Variable mode, if the ambient temperature exceeds ° C, the fan speed increases to maximum. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 31: Using The Display
Some displays also have a question mark ( ) in the upper right corner. Selecting the question mark brings up a help screen describing the display. Figure 2 shows three typical displays and a help screen. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 32 Enter key for a display description. Press the Enter Key to return to the previous display. Figure 2-2 Typical Displays for the Keysight E8402A and E8404A Enhanced Monitor Menu Map Figure 3 shows a complete display menu map for the Enhanced Monitor.
Page 33 DISPlay:WINDow -12V -5.2V PS Temp command. Refer to the DISPlay:WINDow MPSHistogram command for additional information. PSHistogra[1..10] Figure 2-3 Keysight E8402 & E8404 Enhanced Monitor Display Menu Map Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 34 Interrupt Line: Logical Address: 224 SVXI HP E8404A Revision A.01.00 1000W AC Supply Serial Number: Name: not set SABout Figure 2-4 Keysight E8402 & E8404 Enhanced Monitor Display Menu Map (continued) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 35: Enhanced Monitor Fan Control
VARiable to FULL at any time. When software control has set the fans to FULL, the front panel fan switch can be set to variable Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 36 VARiable means that the enhanced monitor sets the fan speed based on the temperature conditions in the mainframe and the temperature limits set by the user. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 37: Setting Enhanced Monitor Limits
-- 0.06. For this reason, you should specify current and power limits to reflect the actual needs of the VXI modules installed in the mainframe. Then a warning is generated in sufficient time to correct a problem. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 38: Handling Warnings
Otherwise, you will start again after a mainframe power-down or reset. Use the SYSTem:NVSave command to save the values in non-volatile memory. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 39: Enhanced Monitor Measurement Cycles
During the measurement cycle, the Measuring bit in the Operational Status Condition Register is set and then cleared. This allows you to synchronize with the measuring cycle if you want to. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 40: Using The History Queue
(Up/Down arrows appear in the display only when additional data is available) four events at a time. Down arrow indicates more data is available. Use Up/Down keys to scroll through display. Figure 2-5 Example History Queue Display Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 41: Rs-232 Programming
+5Vdc to the +5VEXT connector (located near the RS-232 port). If you use the RS-232 port while the mainframe is powered on, you do not need to provide the external +5Vdc. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 42 Intersperse your commands with queries. This will help you stay synchronized with the port. If you reattach a terminal after using a computer and see no character echo, Ctrl-T should return the port to terminal mode. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 43: Diagnostic Connector
TTL low-true output asserted by the mainframe power monitor at power down or whenever a loss of power is detected. Chassis ground. Reserved. Used for Timer Verification; refer to Chapter 4. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 44: 5Vc (Pin 6)
Diagnostic Connector, make certain that you do not violate the VXI backplane electrical specifications (i.e. keep the cable as short as possible, buffer the signal line, etc.). Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 45: Understanding Scpi Commands
Programming the Enhanced Monitor This chapter explains how to program the enhanced monitor of the Keysight E8402A and E8404A VXI mainframes including: – Complete C language program examples – Complete SCPI Command Reference – Complete IEEE 488.2 Common Command Reference Understanding SCPI Commands Commands are separated into two types: IEEE 488.2 Common Commands and...
Page 46: Command Separator
Examine the example subsystem above. The second level command [:WINDow] is an implied command (indicated by square brackets []). You can use either form: :DISPlay:WINDow <display window> or :DISPlay <display window> Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 47: Parameters
Linking IEEE 488.2 Common Commands with SCPI Commands. Use a semicolon (;) between the commands. For example: *RST;SYSTem:VERSion? or SYSTem:VERSion?;*RST Linking Multiple SCPI Commands. Use both a semicolon (;)and a colon (:) between the commands. For example: SYST:COMM:SER:BAUD 19200;:SYST:COMM:SER:BITS 8 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 48: Programming Examples
ANSI C compiler. A more complete Enhanced Monitor setup example is provided on the Keysight Universal Instrument Drivers CD ROM in the directories: \examples\Keysighte8402 \examples\Keysighte8404 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 49: Example 1: Self Test & Verification
/* mainframe serial number */ chr txt_string[256] /* String sent to display */ char selftst_string[256]; /* Self-test string */ /* Open the default resource manager errStatus = viOpenDefaultRM (&viRM); CHECKERR(errStatus, __LINE__); Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 50 CHECKERR(errStatus, __LINE__); /* Close the Enhanced Monitor Instrument Session */ errStatus = viClose (en_mon); CHECKERR(errStatus, __LINE__); /* Close the Resource Manager Session */ errStatus = viClose (viRM); CHECKERR(errStatus, __LINE__); return VI_SUCCESS; Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 51: Example 2: Setting Up The Mainframe
/* Status from each VISA call */ ViSession viRM; /* Resource mgr. session */ ViSession en_mon; /* Enhanced Monitor session */ ViUInt16 echoed_limit; /* For verification of programmed temp limit */ Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 52 TEMP_LIM, LIM_SLOT, echoed_limit); /* If you wish to save your new settings in non-volatile RAM (NVRAM), uncomment the following 2 lines of code */ errStatus = viPrintf(en_mon, “SYST:NVS\n”); CHECKERR(errStatus, __LINE__); Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 53 Programming the Enhanced Monitor /* Close the Enhanced Monitor instrument session */ errStatus = viClose(en_mon); CHECKERR(errStatus, __LINE__); /* Close the resource manager session */ errStatus = viClose(viRM); CHECKERR(errStatus, __LINE__); return VI_SUCCESS; Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 54: Example 3: Set-Up The Rs-232
/*Resource mgr. session */ ViSession en_mon; /* Enhanced Monitor session /* Open the default resource manager errStatus = viOpenDefaultRM (&viRM); CHECKERR(errStatus, __LINE__); /* Open the Enhanced Monitor instrument session */ errStatus = viOpen(viRM,INSTR_ADDR,VI_NULL,VI_NULL,&en_mon); Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 55 CHECKERR(errStatus, __LINE__); /* Close the Enhanced Monitor Instrument Session */ errStatus = viClose (en_mon); CHECKERR(errStatus, __LINE__); /* Close the Resource Manager Session */ errStatus = viClose (viRM); CHECKERR(errStatus, __LINE__); return VI_SUCCESS; Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 56: Example 4: Reading Current Status Information
/* utility variables for PREamble */ float yincrement; /* utility variables for PREamble */ ViInt16 xincrement, xreference, yorigin, yreference; /* utility variables for PREamble */ ViInt32 xorigin; /* utility variable for PREamble */ Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 57 CHECKERR(errStatus, __LINE__); printf(“PREamble: %s\n”, preamble); /* For visual reference */ /* Extract the various fields of the PREamble. */ sscanf(preamble, “%hd,%hd,%hd,%hd,%hd,%ld,%hd,%f,%hd,%hd”, &format, &type, &points, &count, &xincrement, &xorigin, &xreference, &yincrement, &yorigin, &yreference); Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 58 10 temperature ranges of slot OUT5\n”); for (i=0; i<10; i++) printf(“%5.1f to %5.1f deg: %d seconds\n”, 0.1*minArray[i], 0.1*maxArray[i] , histArray[i]); /* Close the Enhanced Monitor instrument session */ Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 59 Programming Examples Programming the Enhanced Monitor errStatus = viClose(en_mon); CHECKERR(errStatus, __LINE__); /* Close the resource manager session */ errStatus = viClose(viRM); CHECKERR(errStatus, __LINE__); return VI_SUCCESS; Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 60: Scpi Command Reference
Programming the Enhanced Monitor SCPI Command Reference SCPI Command Reference The following section describes the SCPI commands for the Keysight E8402A Enhanced Monitor. Commands are listed alphabetically by subsystem and also within each subsystem. CALibration Subsystem The CALibration Subsystem is described in detail in Chapter 4 of this manual.
Page 61: Display[:Window]
<display window> sets the data screen presently showing on the mainframe’s display to the window described by the <display window> parameter. DISPlay[:WINDow]? returns a string representing the current display window. Parameters Name Type Range Default Description Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 62 – The “Keysight E8402 & E8404 Enhanced Monitor Display Menu Map” on page 33 shows a simplified menu map for the Enhanced Monitor. The keywords below each display box are the <display window> range parameter from the previous table. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 63 Number Message Probable Cause -109 “Missing Parameter” The <display window> parameter was omitted. -221 “Settings Conflict” The mainframe’s power is off. -224 “Illegal Parameter” The <display window> parameter was not correct. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 64 Programming the Enhanced Monitor DISPlay Subsystem Reset Condition At *RST, DISPlay[:WINDow] is set to MMAin. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 65: Display[:Window]:State
The <state> parameter was omitted. -221 “Settings Conflict” The mainframe’s power is off. -224 “Illegal Parameter” The <state> parameter was not correct. Reset Condition At *RST, DISPlay[:WINDow]:STATe is set to ON. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 66: Display[:Window]:Text[:Data]
“Character data not allowed” Quotation marks were left off. -151 “Invalid string data” An embedded new line in the string instead of a ‘\n’. -221 “Settings Conflict” The mainframe’s power is off. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 67 Programming the Enhanced Monitor Reset Condition *RST removes text, and set the display screen to MMAin. Example The following is a Visual C example: viPrintf(vi, “disp:text \”this is a test\nof the immediate\nmessage capability.\”\ n”) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 68: Format Subsystem
– Keysight VISA swaps the bytes in the definite block format of viQueryf in a PC. Therefore, you should not use this command if you are using Keysight VISA. Reset Condition At *RST, the byte order is reset to NORMal. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 69: History Subsystem
Returns max. <supply> voltage since pwr-on. :CMINimum? <supply> Returns min. <supply> voltage since pwr-on. [:HISTogram]? <supply> Returns <supply> voltage histogram data. :MAXimum? <supply> Returns maximum <supply> voltage. :MINimum? <supply> Returns minimum <supply> voltage. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 70: History:blower[:Histogram]? [,Min|Max]
0-2147483647 none highest RPM range. Comments – HIST:BLOW? BLOW1 returns 10 time values, units set/queried by HIST:UNIT. – HIST:BLOW? BLOW1,MAX returns 10 values representing the maximums for each RPM range. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 71 The <blower> or optional parameter not correct. -311 “Memory error” The historical data’s memory is not available. Reset Condition *RST has no effect on the HISTory subsystem. Related Commands HISTory:RESet:BLOWer, HISTory:UNITs[:TIME] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 72: History:current:cmaximum?
“Settings Conflict” The power supply doesn’t support current measurements. -224 “Illegal Parameter” The <supply> parameter was not correct. Reset Condition *RST has no effect on the HISTory subsystem. Related Commands HISTory:CURRent:MAXimum?, HISTory:CURRent:[HISTogram]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 73: History:current[:Histogram]? [,Min|Max]
Comments – HIST:CURR? P5 returns 10 time values for the +5V supply. – HIST:CURR? P5,MAX returns 10 values representing the maximum currents in each current range in milliamps. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 74 Power supply doesn’t support current measurements. -311 “Memory error” The historical data’s memory is not available. Reset Condition *RST has no effect on the HISTory subsystem. Related Commands HISTory:CURRent:MAXimum?, HISTory:RESet:CURRent, HISTory:UNITs[:TIME] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 75: History:current:maximum?
The <supply> parameter was not correct. -311 “Memory error” The historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:CURRent:CMAXimum?, HISTory:CURRent:[HISTogram]?, HISTory:RESet:CURRent, HISTory:RESet[:ALL] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 76: History:power:cmaximum?
The power supply doesn’t support current measurements. -224 “Illegal Parameter” The <supply> parameter was not correct. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:POWer:MAXimum?, HISTory:POWer:[HISTogram]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 77: History:power[:Histogram]? [,Min|Max]
Comments – HIST:POW? P5 returns 10 time values for +5V supply. – HIST:POW? P5,MAX returns 10 values representing the maximum power for each power range in milliwatts. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 78 The historical data’s memory is not available. -221 “Settings Conflict” The power supply doesn’t support power measurements. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:POWer:MAXimum?, HISTory:RESet:POWer, HISTory:UNITs[:TIME] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 79: History:power:maximum?
-224 “Illegal Parameter” The <supply> parameter was not correct. -311 “Memory error” The historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 80 Programming the Enhanced Monitor HISTory Subsystem Related Commands HISTory:POWer:CMAXimum?, HISTory: POWer:[HISTogram]?, HISTory:RESet: POWer, HISTory:RESet[:ALL] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 81: History:queue:count
Number Message Probable Cause -311 “Memory error” The history queue’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:QUEue[:FETCh]?, HISTory:RESet:QUEue, HISTory:UNITs[:TIME], HISTory:UNITs[:TIME]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 82: History:queue[:Fetch]?
18 - 30 Middle slot temperature was over the limit. Event Number 18 is slot 0; 30 is slot 12. Limit is given in the event string. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 83 -- Bit 6 set: non-volatile calibration settings lost or corrupted. -- Bit 7 set: non-volatile histogram data lost or corrupted. -- Bit 10 set: non-volatile history queue data lost or corrupted. -- Bit 12 set: wake-up ROM test failed. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 84 The <event number> was beyond HIST:QUE:COUN. -311 “Memory error” The history queue’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:QUEue:COUNt?, HISTory:RESet:QUEue, HISTory:UNITs[:TIME], HISTory:UNITs[:TIME]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 85: History:reset[:All]
:VOLT <supply> P5, P12, N12, P24, none Erases the voltage historical data for the selected <supply>. N24, N5PT2, N2 P5 is positive 5 Vdc supply, N12 is negative 12 Vdc supply, etc. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 86 The mainframe’s power is off. -224 “Illegal Parameter” The parameter was not correct. -311 “Memory error” The historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 87: History:temperature:cmaximum? History:temperature:cminimum?
Probable Cause -109 “Missing parameter” You must include the <slot> parameter. -224 “Illegal Parameter” The <slot> parameter was not correct. Reset Condition A *RST has no effect on the HISTory subsystem. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 88 Programming the Enhanced Monitor HISTory Subsystem Related Commands HISTory:TEMPerature:MAXimum?, HISTory:TEMPerature:MINimum?, HISTory:TEMPerature:[HISTogram]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 89: History:temperature[:Histogram]? [,Min|Max]
2, units set/queried by HIST:UNIT. – HIST:TEMP? OUT2,MAX returns 10 temperatures that returns the maximums for each temperature range in tenths of a degree Celsius (0.x  C) for slot 2. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 90 The <slot> or optional parameter were not correct. -311 “Memory error” The historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:RESet:CURRent, HISTory:UNITs[:TIME] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 91: History:temperature:maximum? History:temperature:minimum?
Probable Cause -109 “Missing parameter” You must include the <event index> parameter. -224 “Illegal Parameter” the <slot> parameter was not correct. -311 “Memory error” the historical data’s memory is not available. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 92 Programming the Enhanced Monitor HISTory Subsystem Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:TEMPerature:[HISTogram]?, HISTory:RESet:TEMPerature, HISTory:RESet[:ALL] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 93: History:time:lcalibration
, or CAL:VOLT has not been done. The history queue contains information on which calibration was done. Reset Condition *RST has no effect on this query. Related Commands CAL:VOLT?, CAL:TEMP?, CAL[:ALL]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 94: History:time:lhreset
SYSTem:ERRor? query. Number Message Probable Cause -311 “Memory Error” Non-volatile memory is inaccessible. Reset Condition *RST has no effect on this query. Related Commands HISTory:RESet[:ALL], HISTory:RESet:TEMPerature, HISTory:RESet:QUEue Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 95: History:time:ltst
The history queue contains information on which test was done. Reset Condition *RST has no effect on this query. Related Commands *TST?, TEST[:ALL]?, TEST:BLOWer?, TEST:SENSe?, TEST:DISPlay?, TEST:TEMPerature?, TEST:MEMory?, TEST:TIME? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 96: History:time:on
Comments – When the power is turned off and the enhanced monitor is operating on external power, the timer does not advance. Reset Condition *RST has no effect on this query. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 97: History:time:operating
The following table lists the most common error conditions and causes. Error numbers and corresponding messages can be found using SYSTem:ERRor? query. Number Message Probable Cause -311 “Memory Error” Non-volatile memory is inaccessible. Reset Condition *RST has no effect on this query. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 98: History:unit[:Time]
“Missing parameter” The <unit> parameter was omitted. -224 “Illegal Parameter” The <unit> parameter was not correct. Reset Condition *RST sets units back to the last value saved with the SYSTem:NVSave command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 99 HISTory Subsystem Programming the Enhanced Monitor Related Commands SYSTem:NVSave, SYSTem:NVRecall, HISTory:QUEue[:FETCh]?, HISTory:TEMPerature[:HISTogram]?, HISTory:CURRent[:HISTogram]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 100: History:voltage:cmaximum? History:voltage:cminimum?
Number Message Probable Cause -224 “Illegal Parameter” The <supply> parameter was not correct. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:VOLTage:MAXimum?, HISTory:VOLTage:MINimum?, HISTory:VOLTage:[HISTogram]? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 101: History:voltage[:Histogram]? [,Min|Max]
HIST: VOLTage? P5 returns 10 time values, units set/queried by H IST:UNIT – HIST: VOLTage? P5,MAX returns 10 voltages (in millivolts) representing the maximums for each voltage range for the 5 volt supply. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 102 The <supply> parameter was omitted. -311 “Memory error” the historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Related Commands HISTory:VOLTage:MAXimum?, HISTory:VOLTage:CMINimum?, HISTory:VOLTage:MINimum?, HISTory:RESet:VOLTage, HISTory:UNITs[:TIME] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 103: History:voltage:maximum? History:voltage:minimum?
Probable Cause -224 “Illegal Parameter” the <slot> parameter was not correct. -311 “Memory error” the historical data’s memory is not available. Reset Condition A *RST has no effect on the HISTory subsystem. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 104 Programming the Enhanced Monitor HISTory Subsystem Related Commands HISTory:VOLTage:CMAXimum?, HISTory:VOLTage:CMINimum?, HISTory:VOLTage:[HISTogram]?, HISTory:RESet:VOLTage, HISTory:RESet[:ALL] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 105: Status Subsystem
Figure 0-1 shows a simplified register diagram for the status subsystem. 1 The only exception is the STATus:QUEStionable:VOLTage register which is set with the STATus:QUESTionable:VOLTage:PTR command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 106 Operation Status Register Mainframe Power Down Calibrating Unused Unused (Power Down) Unused Measuring Unused Unused Unused Unused Unused Mainframe Power Down History Queue Full Front Panel Keys Unused Reserved Reserved Always 0 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 107: Subsystem Syntax
Alias for HIST:POW:MAX :TEMPerature :CMAXimum? <slot> Alias for HIST:TEMP:CMAX? :CONDition? Returns Temp. Condition Register :ENABle <mask> Sets the Temperature enable register :ENABle? Returns Temperature enable register :[EVENt]? Returns Temperature event register Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 108 Returns Voltage enable register :[EVENt]? Returns Voltage event register :LEVel? <supply> Returns last <supply> voltage meas. :PTR <mask> Sets voltage positive transition filter. :PTR? Returns voltage positive transition filter. :SCONdition? Returns monitor pass/fail condition. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 109: Status:operation:condition
Range Default Description int16 0 - 32767 none Bit mask indicating which conditions are set (1) or cleared (0) in the OPERation status group. Each condition has a decimal weighted value. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 110 STATus Subsystem Comments – The condition register reflects the real-time state. This differs from events which are latching. Reset Condition *RST does not affect the status system. Related Commands STATus:OPERation:EVENt?, STATus:OPERation:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 111: Status:operation:enable Status:operation:enable
– The Enable register values are saved in non-volatile RAM with the SYSTem:NVSave command. The register values are restored to the registers at power-on if *PSC was set to 0 before power-on. SYSTem:NVRecall will also restore the enable registers. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 112 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:OPERation:CONDition?, STATus:OPERation:EVENt?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 113: Status:operation:event
OPERation status group. – Cleared by: *CLS, power-on, and by reading the register. Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:OPERation:CONDition?, STATus:OPERation:ENABle,*CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 114: Status:preset
The factory defaults are listed in the following table: Register Default Value STATus:OPERation:ENABle STATus:QUEStionable:ENABle STAT:QUES:BLOWer:ENABle STAT:QUES:CURRent:ENABle STAT:QUES:TEMPerature:ENABle 32767 STAT:QUES:VOLT:ENABle STAT:QUES:VOLT:PTR Reset Condition *RST does not affect the status system. Related Commands STATus:OPERation:ENABle, STATus:QUEStionable:ENABle, STATus:QUEStionable:BLOWer:ENABle, STATus:QUEStionable:CURRent:ENABle, STATus:QUEStionable:TEMPerature:ENABle, STATus:QUEStionable:VOLTage:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 115: Status:questionable:blower:condition
Bit mask indicating which conditions are set (1) or cleared (0) for the BLOWer status group. Comments – The status bit is set when a blower is outside of its expected speed for its present level. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 116 Programming the Enhanced Monitor STATus Subsystem Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:BLOWer:EVENt?, STATus:QUEStionable:BLOWer:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 117: Status:questionable:blower:enable Status:questionable:blower:enable
Therefore, any values that SYSTem:NVSave you have stored ( command) are returned to the registers. However, if *PSC was set to 1, then at power-on the factory defaults are returned. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 118 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:QUEStionable:BLOWer:CONDition?, STATus:QUEStionable:BLOWer:EVENt?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 119: Status:questionable:blower:event
– Cleared by: *CLS, power-on, and by reading the event register. Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:QUEStionable:BLOWer:CONDition?, STATus:QUEStionable:BLOWer:ENABle, *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 120: Status:questionable:blower:level
*RST does not affect the fan level directly. If the fans were on full speed because SYSTem:BLOWer:STATE FULL command had been executed, then *RST clears that state to VARiable. Related Commands STATus:QUEStionable:BLOWer:SPEed? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 121: Status:questionable:blower:speed? [,Min|Max]
*RST does not affect the fan speed directly. If the fans were on full speed because the S YSTem:BLOWer:STATE FULL command had been executed, then *RST clears that state to VARiable Related Commands STATus:QUEStionable:BLOWer:LEVel? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 122: Status:questionable:condition
– For any of the summary bits to be set, an enabled bit in the corresponding Event Register was set. Refer to Figure 0-1 for the relationship between event registers and summary bits. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 123 0 - 32767 none Bit mask indicating which conditions are set (1) or cleared (0) for the QUEStionable status group. Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:EVENt?, STATus:QUEStionable:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 124: Status:questionable:current:condition
Bit mask indicating which conditions are set (1) or cleared (0) for the CURRent status group. Comments – A bit is set when a current measurement is outside of the user-set limit. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 125 Number Message Probable Cause -241 “Hardware missing” Power supply doesn’t support current measurements Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:CURRent:EVENt?, STATus:QUEStionable:CURRent:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 126: Status:questionable:current:enable Status:questionable:current:enable
Therefore, any values that you have stored (SYSTem:NVSave command) are returned to the registers. However, if *PSC was set to 1, then at power-on the factory defaults are returned. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 127 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:QUEStionable:CURRent:CONDition?, STATus:QUEStionable:CURRent:EVENt?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 128: Status:questionable:current[:Event]
Probable Cause -241 “Hardware missing” power supply doesn’t support current measurements Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:QUEStionable:CURRent:CONDition?, STATus:QUEStionable:CURRent:ENABle, *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 129: Status:questionable:current:level? [,Min|Max]
The following table lists the most common error conditions and causes. Error numbers and corresponding messages can be found using SYSTem:ERRor? query. Number Message Probable Cause -241 “Hardware missing” Power supply doesn’t support current measurements Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 130 Programming the Enhanced Monitor STATus Subsystem Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:CURRent:EVENt?, STATus:QUEStionable:CURRent:CONDition?, STATus:QUEStionable:CURRent:ENABle?, STATus:QUEStionable:CURRent:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 131: Status:questionable:current:limit , Status:questionable:current:limit? [,Min|Max]
Current limit for <supply>. Comments – Power Supply Maximums: Power Supply Keysight E8402 Keysight E8404 – 4A – 15A – 4A – 15A N5PT2 – 20A – 60A – 10A – 30A Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 132 SYSTem:NVSave after setting all the limits you desire. This will move them into non-volatile memory. Reset Condition *RST resets register the last value saved by the SYST:NVS command. Related Commands SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 133: Status:questionable:enable
Therefore, any values that you have stored (SYSTem:NVSave command) are returned to the registers. However, if *PSC was set to 1, then at power-on the factory defaults are returned. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 134 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:QUEStionable:CONDition?, STATus:QUEStionable:EVENt?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 135: Status:questionable[:Event]
– Cleared by: *CLS, power-on, and by reading the event register. Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:QUEStionable:CONDition?, STATus:QUEStionable:ENABle, *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 136: Status:questionable:power:level? [,Min|Max]
SYSTem:ERRor? query. Number Message Probable Cause -241 “Hardware missing” Power supply doesn’t support power measurements. Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:CONDition?, STATus:QUEStionable:EVENt?, STATus:QUEStionable:ENABle?, STATus:QUEStionable:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 137: Status:questionable:power:limit Status:questionable:power:limit? [Min|Max]
Use MIN and MAX parameters with the query to determine the maximum and minimum power limits. Reset Condition *RST resets register the last value saved by the SYST:NVS command. Related Commands STAT:QUES:CURR:LIMit?, SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 138: Status:questionable:temperature:condition
0 - 32767 none Bit mask indicating which conditions are set (1) or cleared (0) for the TEMPerature status group. Comments A bit is set when a slot temperature is over the user-specified limit. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 139 STATus Subsystem Programming the Enhanced Monitor Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:TEMPerature:EVENt?, STATus:QUEStionable:TEMPerature:ENABle, STATus:QUEStionable:TEMPerature:LIMit Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 140: Status:questionable:temperature:enable Status:questionable:temperature:enable
Therefore, any values that you have stored (SYSTem:NVSave command) are returned to the registers. However, if *PSC was set to 1, then at power-on the factory defaults are returned. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 141 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:QUEStionable:TEMPerature:CONDition?, STATus:QUEStionable:TEMPerature:EVENt?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 142: Status:questionable:temperature:event
TEMPerature status group. Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:QUEStionable:TEMPerature:CONDition?, STATus:QUEStionable:TEMPerature:ENABle, *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 143: Status:questionable:temperature:level? [,Min|Max]
Reset Condition *RST does not affect the temperatures. It can affect the maximums and minimums if a limit was set and not saved with the SYSTem:NVSave command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 144: Status:questionable:temperature:limit ,[,[,]] Status:questionable:temperature:limit? [,Min|Max]
The absolute limit will then dominate the warning trip point. The actual limit point can be queried with the MAX optional parameter on the STAT:QUES:TEMP:LEV? query. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 145 Absolute limit for ambient temp. 67  STAT:QUES:TEMP:LIM ALL, 57,25, 67 Absolute limit of all output temps of 57 C, all  delta temps of 25 C, and ambient temp of 67  Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 146: Status:questionable:umcounter:tinterval Status:questionable:umcounter:tinterval
To disable the counter, send the command STATus:QUEStionable:UMCounter:TINTerval DEF – The MINimum value is 1, MAXimum value is 65534, DEFault value is 65535. Reset Condition *RST does not affect the UM Counter. Related Commands STATus:QUEStionable:UMCounter:TRESet, STATus:QUEStionable:UMCounter:TREMaining? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 147: Status:questionable:umcounter:tremaining
Set the time interval ( STAT:QUES:UMC:TINT ) and then reset the counter ( STAT:QUES:UMC:TRES ) to enable the user maintenance counter. Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:UMCounter:TINTerval, STATus:QUEStionable:UMCounter:TREMaining? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 148: Status:questionable:umcounter:treset
STAT:QUES:UMC:TRES clears any present UMCounter warnings and begins the countdown again. Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:UMCounter:TINT, STATus:QUEStionable:UMCounter:TREMaining? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 149: Status:questionable:voltage:condition
0 - 32767 none Bit mask indicating which conditions are set (1) or cleared (0) for the VOLTage status group. Comments – A bit is set when the supply is out of limits. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 150 Programming the Enhanced Monitor STATus Subsystem Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:VOLTage:EVENt?, STATus:QUEStionable:VOLTage:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 151: Status:questionable:voltage:enable Status:questionable:voltage:enable
However, if *PSC was set to 1, then at power-on the factory defaults are returned. The value 487 includes all power supples except P5STby and P5EXt. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 152 *RST resets register the last value saved by the SYST:NVS command. Use STATus:PRESet to clear the enable registers of the OPERation status group and the QUEStionable status group. Related Commands STATus:QUEStionable:VOLTage:CONDition?, STATus:QUEStionable:VOLTage:EVENt? STATus:QUEStionable:VOLTage:ENABle?, STATus:PRESet, SYSTem:NVSave, *PSC Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 153: Status:questionable:voltage:event
VOLTage status group. Reset Condition *RST does not affect the status system, use *CLS to clear all event registers. Related Commands STATus:QUEStionable:VOLTage:PTR, STATus:QUEStionable:VOLTage:ENABle, *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 154: Status:questionable:voltage:level? [,Min|Max]
STAT:QUES:VOLT:LEV? P5, MAX will return the limit warning point for the 5V supply. Reset Condition *RST does not affect the status system. Related Commands STATus:QUEStionable:VOLTage:EVENt?, STATus:QUEStionable:VOLTage:CONDition?, STATus:QUEStionable:VOLTage:ENABle?, STATus:QUEStionable:VOLTage:ENABle Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 155: Status:questionable:voltage:ptr Status:questionable:voltage:ptr
5Volt Standby External 5 volt supply for Enhanced Monitor RS-232 port. -2 (N2) volt power supply -5.2 (N5P2) volt power supply -12 (N12) volt power supply -24 (N24) volt power supply Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 156 Programming the Enhanced Monitor STATus Subsystem Unused Unused 1024 Unused 2048 Unused 4096 Unused 8192 Unused 16384 Unused 32768 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 157: Status:scondition
Bit 27: Slot 11 Temperature over limit 1073741824 Bit 28: Slot 12 Temperature over limit 2147483648 Bit 29: Ambient Temperature over limit Bit 30 Power Supply Temperature over limit Bit 31: Not Used; set to 0. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 158 Power Supply cooling fan) Bit 4: 5V External Voltage Bit 5 through Bit 31: Not used; set to 0. a Fan is operating out of expected range for the present level. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 159: System Subsystem
[:TYPE]? Returns RS-232 parity :SBITs <bits> Sets RS-232 number of stop bits :SBITs? Returns RS-232 number of stop bits :VXI:ADDRess? <address>Returns enhanced monitor VXI address :DATE:LMA? Returns last factory maintenance date. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 160 +5VEXT connector. Refer to “External +5V Supply” on page 23. If you are using the RS-232 port while the mainframe is powered ON, the external 5Vdc is not necessary. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 161: System:beeper:frequency System:beeper:frequency? [Min | Max]
6000. Similarly, if you specify 100, it is clamped at 125. Reset Condition *RST returns the beeper frequency to the last values saved by the SYST:NVS command. Related Commands SYSTem:BEEPer:TIME, SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 162: System:beeper[:Immediate] [[,]]
SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST has no effect on the SYSTem:BEEP command. Related Commands SYSTem:BEEPer:FREQuency, SYSTem:BEEPer:TIME Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 163: System:beeper:state System:beeper:state
SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST sets the state to ON. Related Commands SYSTem:BEEPer:STATe? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 164: System:beeper:time
Instead, the duration is set to the closest value within the valid range. Reset Condition *RST resets beeper duration to the last value saved by the SYST:NVS command. Related Commands SYSTem:BEEPer:FREQuency, SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 165: System:blower:state System:blower:state
VARiable means that the enhanced monitor sets the fan speed based on the temperature conditions in the mainframe and the temperature limits set by the user. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 166 The <state> parameter was not correct. Reset Condition *RST sets SYSTem:BLOWer:STATe to match the front panel fan switch setting. If you had executed SYSTem:BLOWer:STATe FULL , it is reset to VAR. Related Commands STATus:QUEStionable:TEMPerature:LIMits Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 167: System:communicate:serial:control:rts System:communicate:serial:control:rts
– RTS IBFull means that while the input buffer is not yet full, RTS is asserted. When the buffer becomes full, RTS becomes unasserted. Reset Condition *RST resets RTS to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 168: System:communicate:serial:echo System:communicate:serial:echo
Description Boolean 0, 1 Echoing characters from keyboard. 0 is OFF, 1 is ON Reset Condition *RST resets ECHO to the last value saved by the SYST:NVS command. Related Commands SYSTem:COMMunicate:PRESet:TERMinal Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 169: System:communicate:serial:eresponse System:communicate:serial:eresponse
Range Description Boolean 0, 1 Immediate error reporting. 0 is OFF, 1 is ON Reset Condition *RST resets ERESponse to the last value saved by the SYST:NVS command. Related Commands SYSTem:COMMunicate:PRESet:TERMinal Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 170: System:communicate:serial:lbuffer System:communicate:serial:lbuffer
Range Description Boolean 0, 1 Line buffer state 0 is OFF, 1 is ON Reset Condition *RST resets LBUFfer to the last value saved by the SYST:NVS command. Related Commands SYSTem:COMMunicate:PRESet:TERMinal Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 171: System:communicate:serial:preset[:All] System:communicate:serial:preset:raw System:communicate:serial:preset:terminal
Not Changed Control:RTS Not Changed Not Changed Echo ERESponse LBUFfer Pace None Parity None Not Changed Not Changed Sbits Not Changed Not Changed Reset Condition *RST has no effect on this command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 172: System:communicate:serial[:Receive]:Baud |Min|Max|Def System:communicate:serial[:Receive]:Baud
300 but does not change the actual baud rate. Likewise, MAX sets or returns the maximum baud rate (19200), and DEF sets/returns the default baud rate. Reset Condition *RST resets baud to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 173: System:communicate:serial[:Receive]:Bits System:communicate:serial[:Receive]:Bits
...SBITs commands, there are combinations which are not allowed because of their data frame bit width. The following table shows the possible combinations: ...BITS ...PARity <type> ...SBITs Frame Bits NONE disallowed NONE ODD/EVEN ODD/EVEN NONE NONE ODD/EVEN ODD/EVEN disallowed Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 174 “Data out of range” You tried to set a disallowed combination of Bits, Parity, and Stop Bits. Reset Condition *RST resets Bits to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 175: System:communicate:serial[:Receive]:Pace System:communicate:serial[:Receive]:Pace
– The XON character is Control Q (ASCII 17 , 11 ). The XOFF character is Control S (ASCII 19 , 13 Reset Condition *RST resets pace to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 176: System:communicate:serial[:Receive]:Parity[:Type] System:communicate:serial[:Receive]:Parity[:Type]
...SBITs commands, there are combinations which are not allowed because of their data frame bit width. The following table shows the possible combinations:. ..BITS ...PARity <type> ...SBITs Frame Bits NONE disallowed NONE ODD/EVEN ODD/EVEN NONE NONE ODD/EVEN ODD/EVEN disallowed Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 177 “Data out of range” You tried to set a disallowed combination of Bits, Parity, and Stop Bits. Reset Condition *RST resets parity to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 178: System:communicate:serial[:Receive]:Sbits System:communicate:serial[:Receive]:Sbits? [Min|Max|Def]
...PARity <type> commands, there are combinations which are not allowed because of their data frame bit width. The following table shows the possible combinations: ...BITS ...PARity <type> ...SBITs Frame Bits NONE disallowed NONE ODD/EVEN ODD/EVEN NONE NONE ODD/EVEN ODD/EVEN disallowed Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 179 “Data out of range” You tried to set a disallowed combination of Bits, Parity, and Stop Bits. Reset Condition *RST resets sbits to the last value saved by the SYST:NVS command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 180: System:communicate:vxi:address?
– This query will return the VXI logical address unless the mainframe’s power is off and the enhanced monitor device cannot read it. It then returns the value 32567. Reset Condition *RST has no effect on the VXI logical address. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 181: System:date:lmaintenance
SYSTem:ERRor? numbers and corresponding messages can be found using query. Number Message Probable Cause -311 “Memory error” Non-volatile memory is inaccessible. Reset Condition *RST has no effect on the manufacturing date. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 182: System:error
The least recent error number/message remains in the queue and the most recent are discarded. Reset Condition *RST does not affect the status system, use *CLS to clear the error queue. Related Commands *CLS Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 183: System:help:headers
The returned data string is very large, nearly 5000 bytes. Be sure to allocate a large enough buffer variable in which to receive it. Reset Condition *RST has no effect on this command. Related Commands Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 184: System:model
(string) of the mainframe Returned Data Type Range Default Description string E8402A, E8404A none Mainframe Model Number Reset Conditions *RST has no effect on this query. Related Commands SYSTem:SNUMber?, *IDN? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 185: System:name
Probable Cause -128 “Numeric data not The <string> started with a number. allowed” -221 “Settings Conflict” The mainframe’s power is off. -148 “Character data not Must use quotation marks around string. allowed” Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 186 Programming the Enhanced Monitor SYSTem Subsystem Reset Condition *RST will load the non-volatile settings. Any change to the SYSTem:NAME that SYSTem:NVSave was not saved with the command is lost. Related Commands SYSTem:SNUMber Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 187: System:nvdefault
Register Default Value Value STATus:OPERation:ENABle STAT:QUES:POW:LIM none STATus:QUEStionable:ENABle SYST:BEEP:FREQ 1000 STAT:QUES:BLOWer:ENABle SYST:BEEP:TIM STAT:QUES:CURRent:ENABle SYST:NAME none STAT:QUES:TEMPerature:ENABle 32767 SYST:SNUM none STAT:QUES:VOLT:ENABle HIST:UNIT:TIME Hour STAT:QUES:VOLT:PTR *PSC STAT:QUES:CURR:LIM none *ESE STAT:QUES:TEMP:LIM 65, 20, *SRE Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 188 Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. -311 “Memory Error” Non-volatile memory failure. Reset Condition *RST has no effect on this command. Related Commands SYSTem:NVRecall, SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 189: System:nvrecall
SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. -311 “Memory Error” Non-volatile memory is inaccessible. Reset Condition *RST has no effect Related Commands SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 190: System:nvsave
The following table lists the most common error conditions and causes. Error numbers and corresponding messages can be found using SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. -311 “Memory Error” Non-volatile memory is inaccessible. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 191 SYSTem Subsystem Programming the Enhanced Monitor Reset Condition *RST has no effect Related Commands SYSTem:NVRecall Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 192: System:power System:power
The mainframe cannot turn off by software control because the main power switch is on, or the Diagnostic Connector’s power pin is being driven. Reset Condition *RST has no effect on powering of the mainframe. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 193 SYSTem Subsystem Programming the Enhanced Monitor Related Commands SYSTem:POWer:STATus? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 194: System:power:cycle
SYSTem:ERRor? query. Number Message Probable Cause -311 “Memory Error” the non-volatile memory is inaccessible. Reset Condition *RST has no effect on this query. Related Commands SYSTem:POWer Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 195: System:power:source
MAIN is the 5V VXI supply, EXTernal is the 5VEXt supply. Comments – The enhanced monitor is always operating on the 5V VXI supply if it is operating. Reset Condition *RST has no effect on this query. Related Commands SYSTem:POWer Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 196: System:power:status
Comments The mainframe cannot power-off unless ALL three of these states are 0 (zero). Reset Condition *RST has no effect on this query. Related Commands SYSTem:POWer Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 197: System:snumber
SYSTem:ERRor? query. Number Message Probable Cause -128 “Numeric data not allowed” Requires quotes around string. -148 “Character data not allowed” Requires quotes around string. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...

Page 198 Programming the Enhanced Monitor SYSTem Subsystem -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST resets serial number the last value saved by the SYST:NVS command. Related Commands SYSTem:NAMe Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 199: System:version
SYSTem Subsystem Programming the Enhanced Monitor SYSTem:VERSion? SYStem:VERSion? returns the SCPI compliance version for this instrument. Returned Data Type Range Default Description decimal 1996.0 none SCPI version supported Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 200: Test Subsystem
Returns string describing results of last test. :SENSe? Performs a test of A/D and D/A. :TEMPerature? Performs a test of slot exhaust temperature sensor boards. :TIME? Performs a test of enhanced monitor’s timing. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 201: Test[:All]
Measurement levels returned from other commands during a test routine were all measured before the test routine started. – Executing TEST:RES:VERB? following a test command, returns a string describing the result. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 202 Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:MEM?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:RESults:VERBose? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 203: Test:blower? []
– Fan settings below the fan level when the command is invoked, are not tested. – If the fan switch is set to FULL during the test, the test will immediately complete. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 204 Probable Cause -221 “Settings Conflict” The mainframe’s power is off. -241 “Hardware missing” Blower 3 does not exist on the Keysight E8402A Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:ALL?, TEST:MEM?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:TIME?, TEST:RESults:VERBose?
Page 205: Test:display
SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:MEM?, TEST:SENS?, TEST:TEMP?, TEST:ALL?, TEST:BLOW?, TEST:TIME? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 206: Test:memory
SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:ALL?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:TIME? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 207: Test:results[:Code]
-- 995 indicating that no calibration or test has been done since mainframe power-on. Reset Condition *RST does not change the last test results. Related Commands TEST:RES:VERB? *TST?, TEST:ALL?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:TIME?, HIST:QUEue:FETCh? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...
Page 208: Test:results:verbose? []
– 995 indicating that no calibration or test has been done since mainframe power-on. Reset Condition *RST does not change the last test results. Related Commands TEST:RES:CODE?, *TST?, TEST:ALL?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:TIME?, HIST:QUEue:FETCh? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...


                                                                    
                                                                                    Page 209: Test:sense
                                        SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:ALL?, TEST:MEM?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:TIMe? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 210: Test:temperature
                                        SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:ALL?, TEST:SENS?, TEST:MEM?, TEST:DISP?, TEST:BLOW? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 211: Test:time
                                        SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition *RST aborts any TEST being performed. Related Commands *TST?, TEST:ALL?, TEST:SENS?, TEST:TEMP?, TEST:DISP?, TEST:BLOW?, TEST:MEM? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 212: Trace Subsystem
                                        The TRACe subsystem provides the measurement data streams. Subsystem Syntax :TRACe [:DATA]? <name> Returns measurement data for trace <name>. [:DATA]:PREamble? <name>Returns preamble data for trace <name>. :POINts? <name> Returns number of measurements in Trace <name> Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 213: Trace[:Data]? 

                                        Main Cooling Fan BLOW2 Power Supply Cooling Fan BLOW3 Power Supply Cooling Fan (Keysight E8404A only) Returned Data Type Range Description IEEE 488.2 Block Trace data for previous hour. (except for P5EXt) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 214
                                        -224 “Illegal Parameter” The <name> parameter was not correct. -109 “Missing Parameter” The <name> parameter was omitted. Reset Condition *RST has no effect on the TRACe data. Related Commands TRACe:PREamble?, TRACe:POINts? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 215: Trace[:Data]:Preamble? 

                                        IN5PT2 -5.2V supply amperage -2V supply amperage TPWR total power on all seven supplies BLOW1 Main Cooling Fan BLOW2 Power Supply Cooling Fan BLOW3 Power Supply Cooling Fan (Keysight E8404 only) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 216
                                        Number Message Probable Cause -224 “Illegal Parameter” The <name> parameter was not correct. -109 “Missing Parameter” The <name> parameter was omitted. Reset Condition *RST has no effect on the TRACe data. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 217: Trace:points? 

                                        <name> trace. This same data is available through TRAC:PRE? At this time, 360 points are kept for each trace except the external 5Vdc supply (P5EXt). Refer to TRACe[:DATA]:PREamble for detailed information. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 218: Ieee Common Commands
                                        Returns the service request enable mask for the Status Byte *STB? Returns the contents of the status byte *RST Sets the module to a known state *TST? Returns the self-test result *WAI Waits for all pending operations to complete Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 219: Cls
                                        – Use *CLS to clear the error queue. It typically follows *RST to reset the module to a known state. Reset Condition *RST does not affect the status system Related Commands STATus:OPERation:EVENt?, STATus:QUEStionable:EVENt?, *ESR? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 220: Ese 

                                        Power On (PON) Parameter Name Type Range Default Description <mask> int16 0 - 255 none Bit mask indicating which enable bits are set (1) or cleared (0) for the Standard Event status group. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 221
                                        Bit mask indicating which enable bits are set (1) or cleared (0) for the Standard Event status group. Reset Condition *RST resets register the last value saved by the SYST:NVS command. Related Commands STATus:OPERation:ENABle, STATus:QUEStionable:ENABle, *ESE? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 222: Esr
                                        Bit mask indicating which enable bits are set (1) or cleared (0) for the Standard Event status group. Reset Condition *RST does not affect the status system. Use *CLS to clear all event registers in the status system. Related Commands STATus:OPERation:EVENt?, STATus:QUEStionable:EVENt? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 223: Idn
                                        -- Serial Number (identical to number returned with SYSTem:SNUMber?) -- Firmware Revision (returns 0 if not available) – The identification string is less than 255 characters. – Example return: Keysight,E8402A,0,A.01.00 Related Commands SYSTem:SNUMber, SYSTem:SNUMber? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 224: Opc
                                        – The OPC? query does not affect the OPC bit in the Standard Status Event status group. In order to set this event use *OPC. Related Commands *ESE, *OPC?, *WAI Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 225: Psc
                                        However, if *PSC was set to 1, then at power-on the factory defaults are returned. The factory defaults are listed in the following table: Register Default Value STATus:OPERation:ENABle STATus:QUEStionable:ENABle STAT:QUES:BLOWer:ENABle STAT:QUES:CURRent:ENABle STAT:QUES:TEMPerature:ENABle 32767 STAT:QUES:VOLT:ENABle STAT:QUES:VOLT:PTR Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 226
                                        Number Message Probable Cause -222 “Settings Conflict” Mainframe power is off. Reset Condition *RST resets register the last value saved by the SYST:NVS command. Related Commands SYSTem:NVSave Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 227: Rst
                                        (including RS-232 values). This is equivalent to its power-on state except that trace data is not restarted and the power-on time is not restarted and CMAX and CMIN values are not restarted. Related Commands *CLS, SYSTem:COMM:SERial:PRESet, SYSTem:NVDefault, HISTory:RESet:xxxx Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 228: Sre 

                                        Summary bit from the Standard Operation status group (OPR) Parameters Name Type Range Default Description <mask> int16 0 - 255 none Bit mask indicating which enable bits are set (1) or cleared (0) for the Status Byte status group. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 229
                                        Bit mask indicating which enable bits are set (1) or cleared (0) for the Status Byte status group. Reset Condition *RST resets register the last value saved by the SYST:NVS command. Related Commands STATus:OPERation:ENABle, STATus:QUEStionable:ENABle, *ESE? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 230: Stb
                                        0-5 and bit 7. Bit 6 is treated differently depending on whether you use *STB? or serial poll. In general, use serial polling inside interrupt service routines, not a *STB?. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 231
                                        IEEE Common Commands Programming the Enhanced Monitor Reset Condition *RST does not affect the status system Related Commands *SRE Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 232: Tst
                                        The following table lists the most common error conditions and causes. Error numbers and corresponding messages can be found using SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” the mainframe’s power is off. Related Commands CALibration? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 233: Wai
                                        *WAI *WAI command will not return until all pending operations have completed. Comments – This command is identical to *OPC? except that it does not return a value. Related Commands *OPC? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 234: Scpi Command Quick Reference
                                        Returns the maximum amperage for the <supply>. :MAXimum? <supply> [query only] :POWer Returns the maximum wattage since power-on for <supply> :CMAXimum? <supply> [query only] Returns <supply> wattage histogram data [:HISTogram]? <supply> [query only] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 235
                                        :LHReset? [query Returns hr, min, sec since last history reset. only] :LTST? [query Returns hr, min, sec since last *TST. only] :ON? [query Returns hr, min, sec since power-on. only] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 236
                                        Returns the contents of the Blower event register only] :LEVel? [query Returns the mainframe fans’ percentage level. only] :SPEed? <blower> [query Returns the last fan RPM measurement only] :CONDition? [query Returns Questionable Condition Register only] :CURRent Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 237
                                        <supply> [query Alias for HIST:POW:MAX only] :TEMPerature :CMAXimum? <slot> [query Alias for HIST:TEMP:CMAX only] :CONDition? [query Returns the contents of the Temperature condition register only] :ENABle <mask> Sets/returnse Temperature enable register Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 238
                                        Causes the mainframe to beep. :STATe <state> Enables/Disables the beeper, returns beeper state :TIME <duration> Sets/returns the beeper’s duration. :BLOWer:STATe <state> Sets/returns status of mainframe fans. (ON, VARiable) :COMMunicate :SERial :CONTrol Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 239
                                        Recalls mainframe settings stored in non-volatile memory. :NVSave [no query] Stores many mainframe settings to non-volatile memory. :POWer <state> Set/returns mainframe power (ON,OFF). :CYCLe? [query Returns number of mainframe power cycles since manufacture. only] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 240
                                        [query Alias for TEST:DISPlay? only] [query only] :RESults [:CODE]? [query Returns the result code of last test performed. only] :VERBose? [<code>] [query Returns string describing results of last test performed. only] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 241
                                        Performs a test of enhanced monitors timing only] :TRACe [:DATA]? <name> [query Returns measurement data for trace. only] :PREamble? <name> [query Returns preamble data trace. only] :POINTs? <name> [query Returns number of measurements in trace. only] Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 242: Common Command Quick Reference
                                        *SRE Enable mask for Status Byte *STB? [query only] Returns Status Byte *RST [no query] Reset the module *TST? [query only] Returns result of running self test *WAI Wait to complete Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 243: Calibrating And Verifying Performance
                                        Performance The procedures in this chapter describe how to calibrate and verify the Enhanced Monitor functions of the Keysight E8402A and E8404A VXI Mainframes. The SCPI calibration commands are described in this chapter; for details on SCPI programming, refer to Chapter 3.                                    
                                                                    
                                                                                    Page 244: Procedure
                                        Any non-zero code indicates a self-test failure. Refer to TEST:ALL for an explanation of the error codes. Executing TEST:RES:VERB? following a test command, returns a string describing the result. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 245: Calibration And Performance Verification
                                        The mainframe should be on for at least one-half hour prior to calibration or verification. The fan switch should be set to the FULL position during warm-up and the calibration or verification. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 246: Calibration Procedure
                                        If the command returns a 0 (zero), then the calibration was successful. If any other value is returned, a defective temperature sensor exists. execute the command TEST:RES:VERB? to get a detailed string description of the problem Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 247: Verification Procedure
                                        – Calibration includes: Calculating A/D offset and gain for each of the seven VXI power supplies and externally applied voltages. Externally measured voltages previously reported to the enhanced monitor through CAL:VAL:VOLT are used for these calculations. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 248: Calibration Procedure
                                        Supply (P24), –24 Vdc Supply (N24), –5.2 Vdc Supply (N5PT2), and –2.0 Vdc Supply (N2). After you have measured and stored the actual power supply voltages; perform the actual calibration by sending the command: Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 249: Verification Procedure
                                        2 Execute the command: TEST:TIME? 3 The average period should be 16mS ±1S. This concludes the Timer Test. If this test fails, return the mainframe for service to your Keysight Sales and Service Office. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 250: Performance Test Record
                                        Performance Test Record Table 2 is a form you can copy and use to record calibration and performance verification results for the Enhanced Monitor. Table 4 - 2Keysight E8402A/E8404A VXI Mainframe Enhanced Monitor Test Record General Information: Test Facility: Name: ________________________________________Report No.______________________________...                                    
                                                                    
                                                                                    Page 251
                                        Performance Test Record Calibrating and Verifying Performance Table 4 - 3Keysight E8402A/E8404A VXI Mainframe Enhanced Monitor Test Record (continued) Record the calibration temperature here: _______________________ Record the individual slot temperatures here: Slot: Front Middle Back Record the individual power supply voltages here:...                                    
                                                                    
                                                                                    Page 252
                                        Calibrating and Verifying Performance Performance Test Record Power Supply Minimum Value Measured Value Maximum Value +5 volt Standby +4.875 Vdc +5.250 Vdc (optional) Record the timer value here: Nominal Value Measured Value 16mS ±2S Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 253: Calibration Subsystem
                                        +1099: bad voltage gain calculation on +24V Supply +1100: bad voltage gain calculation on -24V Supply +1101: bad voltage gain calculation on -5.2V Supply +1102: bad voltage gain calculation on -2V Supply Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 254
                                        Reset Condition Calibration is not affected by reset. However, if a *RST is issued while a calibration is occurring the calibration will be aborted. Related Commands CALibration:VOLtage?, CALibration:TEMPerature?, CALibration:VALue:VOLTage, CALibration:VALue:TEMPerature, TEST:RESULTS:VERBOSE? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 255: Calibration:temperature
                                        Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off or command sent through VXI commander. -410 Query interrupted Calibration was aborted by a device clear event or *RST Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 256
                                        Calibrating and Verifying Performance CALibration Subsystem Reset Condition Calibration is not affected by reset. However, if a *RST is issued while a calibration is occurring the calibration will be aborted. Related Commands CALibration:ALL?, CALibration:VALue:TEMPERature Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 257: Calibration:value:temperature  Calibration:value:temperature
                                        It should have an accuracy of 0.5 °C. If you want the calibration routine to calculate a temperature calibration value you MUST send a CAL:VAL:TEMP -1 before every calibration command. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 258
                                        SYSTem:ERRor? query. Number Message Probable Cause -221 “Settings Conflict” The mainframe’s power is off. Reset Condition Calibration is not affected by *RST. Related Commands CALibration:ALL? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 259: Calibration:value:voltage , Calibration:value:voltage? 

                                        – The measurements made of each VXI power supply made at the Diagnostic Connector should have an accuracy of 0.5%. Refer to Diagnostic Center for additional information on the Diagnostic Connector. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    

                                                                    
                                                                                    Page 260
                                        The <supply> parameter was not correct. -109 “Missing Parameter” The <supply> parameter was omitted. -221 “Settings Conflict” The mainframe’s power is off. Reset Condition Calibration is not affected by *RST. Related Commands CALibration:ALL? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 261: Calibration:voltage
                                        Calibration was aborted by a device clear event, or a *RST Reset Condition Calibration is not affected by reset. However, if a *RST is issued while a calibration is occurring the calibration will be aborted. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 262
                                        Calibrating and Verifying Performance CALibration Subsystem Related Commands CALibration:TEMPerature? Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 263: Servicing Your Mainframe
                                        Keysight E8402A, E8404A C-Size Mainframes User and Service Guide Servicing Your Mainframe Chapter Overview This chapter contains information for troubleshooting and replacing selected components of the Keysight E840xA VXI mainframe. This chapter includes the following information: Problem Isolation page 263...                                    
                                                                    
                                                                                    Page 264
                                        Replace the basic monitor The SYSFAIL indicator will come on and remain on when a VXI module installed in the mainframe fails. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 265: Replacing Assemblies
                                        3 To replace the panel, insert the three tabs into the slots at the top of the mainframe. Rotate the panel down until it is flush against the mainframe. Replace all 14 screws. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 266
                                        Servicing Your Mainframe Replacing Assemblies Figure 5-1 Removing / Replacing the Mainframe Rear Panel (Keysight E8404 shown, Keysight E8402 is similar) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 267: Removing The Mainframe Cover
                                        3 Remove the mainframe cover by removing the ten m3x6 flat head torx screws (five on each side of the mainframe). Refer to Figure 2. Remove 5 Screws From Each Side Figure 5-2 Removing the Mainframe Cover Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 268: Replacing The Internal Temperature Sensor Boards
                                        Figure 5-3 Removing / Replacing the Enhanced Monitor PC Boards You must recalibrate the Enhanced Monitor after replacing the temperature sensor boards. Refer to Chapter 4, “Temperature Monitor Calibration & Verification” on page 245 for details. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 269: Replacing The Enhanced Monitor Controller Board
                                        4 To replace the board, align the board in the card guides. slide the board forward and press it into the backplane connectors. Pull Ring Enhanced Monitor Controller Board Figure 5-4 Removing/Replacing the Enhanced Monitor Controller Board Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 270: Replacing The Keysight E8402A Power Supply
                                        5 Replace the rear panel. Make certain that all 14 screws are secured. You must recalibrate the Enhanced Monitor after replacing the power supply. Refer to Chapter 4 for calibration details. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 271: Replacing The Keysight E8404A Power Supply
                                        5 Replace the rear panel. Make certain that all 14 screws are secured. You must recalibrate the Enhanced Monitor after replacing the power supply. Refer to Chapter 4 for calibration details. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 272: Replacing The Impeller
                                        5 Lift the impeller assembly off the screw locators and gently pull the impeller assembly out from the mainframe (Figure 7). Backplane Adapter Board Backplane Adapter Board Remove Temperature Sensor m4x8 Pan Head Torx Screws Figure 5-7 Removing / Installing the Impeller Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 273: Replacing The Enhanced Monitor Display Lamp
                                        8 Replace the Enhanced Monitor PC board. Reattach all cables. 9 Replace the mainframe cover and the rear panel. Make certain that all screws are secured. Remove/Replace Bulb Display Figure 5-8 Replacing the Display Back-light Bulb Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 274: Replacement Power Cords
                                        Power cords supplied by Keysight have polarities matched to the power input socket on the instrument: L = line or active conductor (also called “live” or “hot”) N = neutral or identified conductor E = earth or safety ground Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 275
                                        Replacement Power Cords Servicing Your Mainframe For protection from electrical shock, the power cord ground must not be defeated. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 276
                                        Servicing Your Mainframe Replacement Power Cords Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 277: A Keysight E8402, E8404A Product Specifications
                                        Width: 424.5 mm (16.7 inches) Depth: 631 mm (24.9 inches) Weight with no modules installed: E8402A: approximately 20 Kg (44 lbs) E8404A: approximately 25 Kg (55 lbs) Maximum Module Weight: 3.5 Kg (7.7 lbs) per slot to comply with shock and vibration specifications.                                    
                                                                    
                                                                                    Page 278: Output Power Specifications
                                        Output Voltage Specifications Allowed Ripple/Noise Induced Voltage Variation DC Load Ripple/Noise +0.25V / –0.125V 50mV 50mV +12V +0.60V / –0.36V 50mV 50mV -12V –0.60V / +0.36V 50mV 50mV Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 279: Input Power Requirements
                                        Efficiency increases slightly with higher input voltage. Efficiency decreases slightly with lower output load. Power Switch: On/Standby switch on front. Indicators: Green when On, amber in Standby and line connected. May be switched On/Standby remotely via Diagnostic Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 280: Mains Power Installation Category Ii
                                        Keysight E8402, E8404A Product Specifications Cooling Specifications Connector. May be switched On/Standby remotely via SCPI command (E8402A, E8404A only). Mains Power Installation Category II +5VSTDBY:Power may be provided by the user to the +5VSTDBY bus on the VXI backplane. Current:1A Max Voltage Range:5.25V Max, 4.875V Min...                                    
                                                                    
                                                                                    Page 281: Cooling Mode (High Or Variable)
                                        – Measurements taken at 1,500m altitude. Cooling Mode (High or Variable) Switchable on the front panel. Controls both impeller and fan. High Fan Speed Mode: Full Airflow all the time. Variable Fan Speed Mode: Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 282: Airflow Path
                                        – ACFAIL* and SYSRESET* in full compliance with the VMEbus and VXIbus Specifications. – Surface mount construction and no sockets for maximum reliability. General Monitor Specifications Indicators – Power/Stdby: Glows amber in Standby and line connected. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 283: Switches
                                        – Fans OK output, same as Fans indicator. TTL low true logic levels. – Backplane voltages OK output. TTL low true logic levels. – SYSRESET*, input or output. TTL low true logic levels. – ACFAIL*, output. TTL low true logic levels. – Ground Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 284: Enhanced Monitor Specifications
                                        Default slot exhaust alarm limits: 65C absolute, user-settable via SCPI command 15C delta, user-settable via SCPI command Voltage Monitor Seven VXI power supply outputs and +5VSTDBY. In Volts. Default alarm limits: Per VXI regulation spec for each voltage, fixed. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 285: Current Monitor
                                        Average bulb life: 25,000 hrs Languages supported: English, French, German, Spanish Command Set: Per IEEE-488.1, 488.2, SCPI-1996.0 VXIbus Interface VXI Device Type: Message-based Servant Programmable Interrupter Statically addressed A16 Device Device Code: 618 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 286: Rs232 Interface
                                        300, 1200, 2400, 4800, 9600, 19200 Parity: Even, Odd, One, Zero, None Character Size: 7, 8 Pace: Xon/Xoff, None Hardware handshake: DTR, RTS External 5V Operation: Refer to Input Power Requirements Section Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 287: Environmental Specifications
                                        Conforms to EN61010-1 including Amendment 2 (IEC 1010-1 including Amendment 2) Certified to CSA 1010.1 NRTL Listing to UL 3111-1 Certified to EN60950 (IEC 950) Certified to CSA 950. NRTL Listing to UL 1950 Compliance. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 288: Electromagnetic Compliance Specifications
                                        All Keysight modules include emc contacts to the adjacent slot. Using EMC Filler Panels in the empty slots completes the connection and reduces radiated emissions and increases radiated and esd immunity. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 289: Power Supply Protection
                                        – MTTR, Enhanced Monitor Display Bulb:<15 minutes (requires removal of main cover). – Calibration time:5 to 10 minutes after steady temperature reached. – Air Filter Replacement (if kit installed):<2 minutes. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 290
                                        Keysight E8402, E8404A Product Specifications Environmental Specifications Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 291: Chapter Overview
                                        Keysight E8402A, E8404A C-Size Mainframes User and Service Guide Rack Mounting and Option Installation Chapter Overview This chapter contains procedures for rack mounting the mainframe and for installing the hardware options available with the mainframe.The sections in this chapter include:...                                    
                                                                    
                                                                                    Page 292: Parts List
                                        Channel Nuts (for slide rails) 0590-0804 Rack Slide-to-Rack Front Screws - m5x12 flat head 0515-0956 Rack Slide-to-Rack Rear Screws - m5x12 pan head 0515-0904 * AMATOM p/n 10939-A-032-2 ** General Devices p/n CC1502-99-0016 Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 293: Rack Mounting The Keysight E840Xa Using Support Rails
                                        2 Using the rack mount adapters as templates, position the adapters on the rack’s vertical rails where the mainframe is to be mounted. Align the adapter holes over the "center" holes of the EIA rack units.. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 294
                                        3 Slide channel nuts over the rack holes to be used by the rack mount adapters. EIA Rack Unit Center Holes Rack Unit Center Hole EIA Rack Unit Center Holes Rack Mount Adapters Figure B - 2 Positioning the Mainframe in the Rack Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 295
                                        Figure B-3. Use four channel nuts and the four 0.5x10-32 support rail-to-rack pan head screws to secure the rail. Position Rail Behind Bottom Channel 0.5x10.32 Pan Head screws Figure B - 3 Attaching the Support Rails to the Rack Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 296
                                        Slide the mainframe into the rack until the rack mount adapter flanges are against the rack’s vertical rails. Secure the mainframe to the rack using the adapter dress screws. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 297: Rack Mounting The Keysight E840Xa Using Rack Slide Rails
                                        2 Using the rack mount adapters as templates, position the adapters on the rack’s vertical rails where the mainframe is to be positioned. Be sure to align the adapter holes over center holes on the vertical rail. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 298
                                        3 Slide channel nuts over the rack center holes to be used by the rack mount adapters. EIA Rack Unit Center Holes Rack Unit Center Hole EIA Rack Unit Center Holes Rack Mount Adapters Figure B - 6 Positioning the Mainframe in the Rack Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 299
                                        Channel Nuts On Center Holes Channel Nuts For Rack Slides Four Holes Channel Nuts On Center Holes Figure B - 7 Positioning the Rack Slides (using Option 923 - standard adapters) Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 300
                                        The mainframe can be recess mounted up to 270.7 mm (10.6 inches) in approximately 12.3 mm (1/2 inch) increments. Note that in some recess positions, the front screw attaching the rack slide adapter may have to be removed. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 301
                                        Secure the mainframe to the rack using the adapter dress screws. To prevent injury during rack mounting, the mainframe should be empty and two people should lift the mainframe into the rack. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 302: Installing The Cable Tray
                                        3 If the mainframe will be placed on a bench top, attach the mainframe feet to the cable tray. If the mainframe is to be rack mounted, you can save rack space by leaving the feet off. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 303
                                        Installing the Cable Tray Rack Mounting and Option Installation Select Holes Based on Cable Clearance Required m5x8 Pan Head Screws Holes for Mounting Customer-Supplied Interface Panel Figure B - 10Installing the Cable Tray Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 304
                                        The side holes are 34.9 mm center-to-center, with the bottom hole 25.4 mm above the tray’s inside surface. All holes are 12.7 mm from the edge and have a diameter of 3.175 mm. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 305: Installing The Tinted Acrylic Door (Option 915)
                                        For the minimum recess distance, attach the rack mount adapters to the mainframe beginning with the 12th hole from the front of the adapter. 2 If necessary, remove the dress screws (0570-1577) securing the adapters to the rack. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 306
                                        6 Adjust the latch keeper so that the door latches as it makes contact with the rubber door stops. Once installed and adjusted, the door can be removed when necessary by lifting the door off the hinge pins. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 307: Installing The Intermodule Chassis Shields
                                        2 Align the chassis shield with the shield guides and gently slide the shield into the mainframe. Be careful not to crimp the front grounding springs with the edge of the shield. Slide the shield in until it reaches the end of the shield guide. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 308
                                        Installing the Intermodule Chassis Shields grounding spring socket VXI module guide chassis shield guide use a small screw driver to secure spring under socket tab Figure B - 12Installing the Grounding Springs and Chassis Shield Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 309: Installing The Backplane Connector Shields
                                        The parts included in the E8400-80918 kit are shown in Table B-3. Table B-3. Keysight E8400-80918 Parts List. Quantity Description Part Number Torx Head Screw - 4-20x.25 0624-0702 Backplane Connector Shield E1400-80601 * Includes two extra screws Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 310: Procedure
                                        3 Tighten the screws by turning them clockwise. The screws are thread-forming and will go in slowly when you install them the first time. Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 311: Keysight E840Xa Air Filter Kit
                                        Remove and Discard Supplied Pan 4 Screws Head Screws Place Top Bracket Insert Filter Into Over the Filter and Bottom Bracket Secure Thumb-Screws Figure B - 14Installing the Optional Air Filter Kit Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
                                                                                    Page 312
                                        Rack Mounting and Option Installation Keysight E840xA Air Filter Kit Keysight E8402A, E8404A C-Size Mainframes User and Service Guide...                                    
                                                                    
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                                        This information is subject to change without notice. © Keysight Technologies, 1997-2019 Printed in Malaysia Edition 3, October 2019 *E8402-90002* E8402-90002 www.keysight.com...


                
            
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                                E8404a

Keysight Technologies E8402A User And Service Manual

1 Getting Started

2 Using the Enhanced Monitor

3 Programming the Enhanced Monitor

Status Subsystem

TEST Subsystem

Trace Subsystem

IEEE Common Commands

4 Calibrating and Verifying Performance

5 Servicing Your Mainframe

A Keysight E8402, E8404A Product Specifications

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Summary of Contents for Keysight Technologies E8402A