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PowerTek MC642 Operation Manual

Programmable resistance decade
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MC642
Programmable Resistance Decade
Operation manual

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Summary of Contents for PowerTek MC642

  • Page 1 MC642 Programmable Resistance Decade Operation manual...

  • Page 3: Table Of Contents

    6.10. SCPI E ............................65 RROR CODES 6.11. C ..........................66 OMPATIBLE OMMANDS 6.12. D ............................68 EMO PROGRAM 7. MAINTENANCE..............................69 7.1. F ..............................69 USE REPLACING 7.2. E ...........................69 XTERNAL SURFACE CLEANING 8. MODULE 19” (VERSION MC642-VXX1X)....................69 9. TECHNICAL DATA............................70 10. ORDERING INFORMATION – OPTIONS....................73...

  • Page 5: Figures

    1 Figures FIGURE 1 STARTING SCREEN.........................8 FIGURE 2 FRONT PANEL...........................9 FIGURE 3 DISPLAY.............................9 FIGURE 4 REAR PANEL...........................11 FIGURE 5 RESISTANCE SCREEN........................12 FIGURE 6 PLATINUM SCREEN........................13 FIGURE 7 NICKEL SCREEN..........................13 FIGURE 8 USER FUNCTION SCREEN......................14 FIGURE 9 USER FUNCTION LIST........................14 FIGURE 10 NEW USER FUNCTION........................15 FIGURE 11 USER FUNCTION POINT EDITING...................15 FIGURE 12 USER FUNCTION EDIT........................16 FIGURE 13 TIMING SCREEN..........................16...

  • Page 6: Tables

    TABLE 3 RS232 CABLE CONNECTION......................28 TABLE 4 OUTPUT COMMAND STRUCTURE.....................43 TABLE 5 KEYBOARD CODES........................62 TABLE 6 SCPI ERROR CODES........................65 TABLE 7 MC642 RESISTANCE ACCURACY....................71 TABLE 8 MC642 PT SIMULATION ACCURACY..................71 TABLE 9 MC642 NI SIMULATION ACCURACY...................71 TABLE 10 MC642 FREQUENCY RESPONSE....................71...

  • Page 7: Basic Information

    Actual set values are displayed high resolution TFT display. MC642 is sophisticated instrument with its own re-calibration procedure. The procedure enables to correct any deviation in resistance without any mechanical adjustment.

  • Page 8: Warm-Up Time

    Figure 1 Starting Screen The instrument performs internal hardware checks for app. 5 seconds. After the tests conclude, the instrument is set to “Startup” preset. This preset is adjustable however, the instrument will always start with OPEN terminals. 2.3. Warm-up time The instrument works after it is switched on and the initial checks complete.

  • Page 9: Description

    3. Description 3.1. Front panel Figure 2 Front panel On the front panel there are located all main control keys, display and output terminals. Output terminals Four wire output terminals. Measuring (evaluation) circuit can be connected by 2, 3 or 4 wires. Both sides (red and grey) are floating up to 500Vpk against the case (PE).
  • Page 10 The display is divided into four sections: A. Information line Selected function (RESISTANCE, PLATINUM, …) Time B. Main area This section displays the set-up values of generated signals and the data related to the decade box status. The section includes the following types of data: 1.

  • Page 11: Rear Panel

    OPER (Operate key) OPER key connects / disconnects selected value to the output terminals. Connected output terminals are indicated by the lit LED in the key. SHORT (Short key) Active SHORT key (LED in the key is ON) replaces the main value with the short circuit. Also the short circuit must be connected to the output terminals by the OPER key.

  • Page 12: Operation

    4. Operation 4.1. Connection and disconnection of output terminals Set value is connected (disconnected) to the output terminals after pressing OPER key. Connected output terminals are indicated by the lit LED in the key. Disconnected output terminals can be used for “Open terminals” simulation. “Short circuit” is simulated after pressing SHORT key.
  • Page 13 Platinum Offers direct setting of temperature of simulated platinum thermometer. Figure 6 Platinum screen Editable parameters: Temperature: -200 °C … +850 °C (-328 !F … 1562 !F) R0 value: 10 Ω … 20 kΩ Temperature standard: PT385 (68), PT385 (90), PT3916, PT3926, PT User Switching mode: FAST, SMOOTH, VIA OPEN, VIA SHORT Nickel...
  • Page 14 User function Offers simulation of conversion curve defined by a table. User can define more conversion curves. Values between defined points are linearly interpolated. Figure 8 User function screen Editable parameters: Main value: according to the function User function: curves defined by the user Switching mode: FAST, SMOOTH, VIA OPEN, VIA SHORT Function is defined by table of user values and corresponding resistance values.
  • Page 15 Creating a new table Pressing the Edit soft key upon plain curve opens this submenu: Figure 10 New user function Curve name – table name is set using ▲,▼ (character selection) and ◄, ► (position) cursor keys. Name may be 8 characters long at most. soft key „A <–> a“ switches between uppercase and lowercase of selected character.
  • Page 16 Editing an existing table Existing table can be edited in the same way as it can be created. Editable entries (Curve name, Unit, Lookup table points) are selected using the key. SELECT Figure 12 User function edit Timing Offers simulation of time-varying resistance defined by a table. User can define more time curves. Figure 13 Timing screen Editable parameters: Timing table:...
  • Page 17 Figure 14 Time sequence list Menu shows a list of all sequences. soft keys on the right hand side of the panel have these functions: Edit – edit selected sequence. Sequence can be selected using cursor keys where ◄, ► skip through pages. Clear –...
  • Page 18 Timing table – a list of values in Ω and their durations in seconds. Browsing through the table is done by ▲,▼ cursor keys. Editing is done using these soft keys: Add – create a new point. Figure 16 Timing sequence point editing Duration –...

  • Page 19: Setting The Value Of Output Signal

    4.4. Setting the value of output signal Edit mode Parameters of output signal can be changed in Edit mode. Only parameters displayed in blue color can be changed. Display can be switched to edit mode in different ways: - Pressing numeric button Pressing SELECT - Pressing cursor button...

  • Page 20: Parameter Settings (Settings Menu)

    4.5. Parameter settings (settings menu) Settings menu is displayed after pressing „Settings“ soft key in main function window. It won’t appear in editing mode so when in editing mode you have to press “Cancel” first. Figure 19 Settings menu In settings menu you can edit all available auxiliary parameters of the current function. These settings are discarded on restart so if you’d like to save them for your next calibration session, use the “Preset”...

  • Page 21: Main Menu

    4.7. Main menu Main menu is displayed after pressing „Menu“ soft key. In main menu you can set all the parameters available. Figure 21 Main menu Required menu item is highlighted using cursor keys ▲,▼ or display soft keys. Highlighted menu is selected by pressing key or „Select“...
  • Page 22 Platinum standard Platinum thermometers can be simulated according to the different standards. Available standards are: PT385 (68) DIN, standard EN60751, temperature scale IPTS68 (A=3.90802e-3, B=-5.80195e-7, C=-4.2735e-12) PT385 (90) DIN, standard EN60751, temperature scale ITS90 (A=3.9083e-3, B=-5.775e-7, C=-4.18301e-12) PT3916 Pt3916 temperature curve (A=3.9692e-3, B=-5.8495e-7, C=-4.2325e-12) PT3926 Pt3926 temperature curve...

  • Page 23: Calibration Mode

    RS232 communication baud rate setting. The same baud rate must be used in the controller. GPIB Address GPIB address setting. Each instrument connected to the GPIB bus must have a unique address. LAN Settings Ethernet parameters setting. Device use Telnet protocol. Default setting is: DHCP IP Address 192.168.001.100...

  • Page 24: Table 1 Mc642 Calibration Points

    500 m 1  72,2 k 4  147 k 10  300 k 20  600 k 40  1,23 M 80  2,48 M 160  5 M 320  10 M Table 1 MC642 Calibration points Operation manual...
  • Page 25 Measure resistance of the selected element. Use ohm-meter with appropriate accuracy in 4-wire connection mode. Figure 23 Calibration point screen Using cursor keys ▲,▼, ◄, ► adjust resistance value in MC642 according to the ohm meter. Confirm new calibration value by pressing “Save” soft key.

  • Page 26: Performance Verification Test

    23 ! 3 °C. Connect resistance decade terminals R4W to the standard ohm-meter (multimeter). 2. Case of decade should be grounded or connected to the Lo terminal of multimeter. 3. Check resistance value in points according to Table I. Maximal absolute deviations MC642 Nominal value MC642 max. deviation 180 m...

  • Page 27: Remote Control

    RS232 Interface The decade box can be controlled via standard RS232 interface. Following equipment is required: MC642 decade box Personal Computer (or other controlling device) with RS232 port (USB-to-RS232 converter is also possible) 9-pin D-SUB, 3-wire direct (1:1) male/female RS232 cable The RS232 interface must be selected from decade system menu to be in operation (SETUP->Interface-...

  • Page 28: Gpib Interface (Option)

    GPIB Interface (option) The decade box can be controlled via GPIB (General Purpose Interface Bus) interface. Following equipment is required: MC642 decade box with LAN, USB, IEEE488 bus option Personal Computer (or other controlling device) with GPIB interface GPIB cable The GPIB interface must be selected from decade system menu to be in operation (SETUP->Interface-...
  • Page 29 LAN Interface allows communication with decade box using Telnet protocol. A proper setting must be established. Following equipment is required: MC642 decade box with LAN, USB, IEEE488 bus option Personal Computer (or other controlling device) with LAN interface LAN cable The LAN interface must be selected from decade system menu to be in operation (SETUP->Interface-...

  • Page 30: Usb Interface (Option)

    The decade box can be controlled via USB (Universal Serial Bus) interface. Following equipment is required: MC642 decade box with LAN, USB, IEEE488 bus option Personal Computer (or other controlling device) with USB interface (USB type A connector) Standard USB A-B cable The USB interface must be selected from decade system menu to be in operation (SETUP->Interface-...

  • Page 31: Command Syntax

    6.5. Command syntax The commands described in this chapter can be issued through all buses (RS232/GPIB/LAN/USB). All commands listed in this chapter are explained in two columns: KEYWORD and PARAMETERS. KEYWORD column includes the name of the command. Each command includes one or more keywords. If a keyword is in brackets ( [ ] ), it is not mandatory.

  • Page 32: Scpi Command Tree

    6.6. SCPI Command Tree This chapter summarizes all public SCPI commands supported by device in alphabetic order. Detailed description follows in next chapter. :CALibration :RESistance :AMPLitude(?) <DNPD> :SELect(?) <DNPD> :SECure :PASSword(?) <DNPD> :EXIT :DISPlay :ANNotation :CLOCk :DATE :FORMat(?) {MDYS|MDYA|DMYS|DMYO|DMYA|YMDS|YMDO} [:STATe](?) {ON|OFF|1|0} :BRIGhtness(?) <DNPD>...
  • Page 33 :ROW<IND_ROW> :AMPLitude(?) <SPD> :RDELete :SAVE :UNIT(?) <SPD> :STATus :OPERation :CONDition(?) <DNPD> :ENABle(?) <DNPD> [:EVENt]? <DNPD> :NTRansition(?) <DNPD> :PTRansition(?) <DNPD> :QUEStionable :CONDition(?) <DNPD> :ENABle(?) <DNPD> [:EVENt]? <DNPD> :NTRansition(?) <DNPD> :PTRansition(?) <DNPD> :SYSTem :BEEPer :STATe(?) {ON|OFF|1|0} :VOLume(?) <DNPD> :COMMunicate :BUS(?) {SERial|GPIB|USB|LAN} :GPIB :ADDRess(?) <DNPD>...

  • Page 34: Standard Status Data Structures

    *TST? *WAI 6.7. Standard Status Data Structures Decade box meets standard protocol according to the standard IEEE488.2. The protocol can be used for checking of error and status behavior of the device. It enables single-wire transmitting of SRQ command. The conditions on which SRQ signal (local control request) is sent can be set with parameters *STB?, *SRE?, *SRE, *ESR?, *ESE?, *ESE a *CLS.
  • Page 35 the STB register except bit MAV, which remains set if the output queue is not empty. STB register value can be read via serial message or through general query *STB?. Bit configuration of Status Byte Register: Operation Summary Status, bit 7. SCPI-defined. The OSS bit is set to 1 when the data in the OSR (Operation Status Register) contains one or more enabled bits which are true.

  • Page 36: Scpi Standard Commands

    This chapter describes standard SCPI commands. *IDN? Syntax: *IDN? Description: This command returns the identification of the manufacturer, model, serial number and firmware revision. Parameters: <CPD> manufacturer <CPD> model <DNPD> serial number <DNPD> firmware version Remarks: Overlapped command Example: *IDN? Response: Powertek,MC642,620151,1.00 Operation manual...
  • Page 37 *OPC Syntax: *OPC Description: This command sets the OPC bit in the ESR (Event Status Register) when all pending operations are complete. Parameters: None Remarks: Overlapped command Example: *OPC *OPC? Syntax: *OPC? Description: This command returns “1” to the output queue after all pending operations inside decade box are complete.
  • Page 38 *RST Syntax: *RST Description: This command resets the device to its initial factory-set state. This state may be different from the “Startup” preset. Parameters: None Remarks: Sequential command Example: *RST *TST? Syntax: *TST? Description: This command launches internal self-test and returns result. Parameters: <DNPD>...
  • Page 39 *ESR? Syntax: *ESR? Description: This query returns the contents of the Event Status Register and clears the register. Parameters: <DNPD> Event Status Register Remarks: Overlapped command Example: *ESR? Response: 0 *ESE Syntax: *ESE *ESE? Description: This command programs the Event Status Enable register bits. Parameters: <DNPD>...

  • Page 40: Scpi Commands

    Parameters: <DNPD> Standard resistance value in Ohms. Ranges and default values varies in accordance to selected resistance etalon (see table “Calibration points MC642”). Remarks: This command requires "Calibration" access Overlapped command Value is not affected by reset or by *RST command Example: CAL:RES:AMPL 1.944...
  • Page 41 :CALibration:SECure:PASSword Syntax: :CALibration:SECure:PASSword <DNPD> Description: This command validates entered password and enables calibration access if verification is successful. Access is invalidated after reset or if CAL:SEC:EXIT command is issued. Calibration password can be changed from decade system menu SETUP->Calibration- >Change password. Parameters: <DNPD>...
  • Page 42 :DISPlay:ANNotation:CLOCk[:STATe] Syntax: :DISPlay:ANNotation:CLOCk[:STATe] <BOOL> :DISPlay:ANNotation:CLOCk[:STATe]? Description: This command enables/disables showing actual time in title on device screen Parameters: <BOOL> {ON|OFF|1|0} (default 1) ·ON actual time is shown ·OFF actual time is hidden ·1 same as ON ·0 same as OFF Remarks: Overlapped command Value is not affected by reset or by *RST command...

  • Page 43: Table 4 Output Command Structure

    :OUTPut:SHORt <BOOL> :OUTPut:SHORt? Description: This command turns on short function. “Short” is activated only if output terminals are switched on (see OUTP:STAT command). Parameters: <BOOL> {ON|OFF|1|0} (default 0) ·ON short is set if output is on ·OFF resistance is set if output is on ·1 same as ON ·0...
  • Page 44 :OUTPut:SWITching Syntax: :OUTPut:SWITching <CPD> :OUTPut:SWITching? Description: If output amplitude is changed and output terminals are already switched on, some glitches appear at output terminals. This setting allows selecting a method how new resistance at output terminals is achieved. Parameters: <CPD> {FAST|SMOoth|OPEN|SHORt} (default FAST) ·FAST new resistance is set as fast as possible...
  • Page 45 [:SOURce]:NICKel:ZRESistance Syntax: [:SOURce]:NICKel:ZRESistance <DNPD>[<UNIT>] [:SOURce]:NICKel:ZRESistance? Description: This command sets resistance at 0 °C for Nickel function. Parameters: <DNPD> Range 10.0 ... 20000.0 (default 100.0). <UNIT> {OHM} ·OHM Remarks: Overlapped command Value is set according to “Startup” preset on restart and to default on *RST command Example: NICK:ZRES 100.0 NICK:ZRES? Response: 1.000000E+02 OHM...
  • Page 46 [:SOURce]:PLATinum:STANdard? Description: This command selects Platinum temperature standard. Parameters: <CPD> {PT385A|PT385B|PT3916|PT3926|USER} (default PT385A) ·PT385A Pt385 (68) standard ·PT385B Pt385 (90) standard ·PT3916 Pt3916 standard ·PT3926 Pt3926 standard ·USER User (see PLAT:COEF command) Remarks: Overlapped command Value is set according to “Startup” preset on restart and to default on *RST command Example: PLAT:STAN PT385A PLAT:STAN? Response: PT385A...
  • Page 47 This command retrieves maximum number of timing sequences. This number represents maximum index used in sequence commands. Parameters: <DNPD> Integer value representing maximum sequence count Remarks: Overlapped command Example: TIM:PCO? Response: 64 [:SOURce]:TIMing:PRESet:NAME Syntax: [:SOURce]:TIMing:PRESet:NAME <SPD> [:SOURce]:TIMing:PRESet:NAME? Description: This command allows reading and changing sequence name. Data will be saved to non-volatile memory on TIM:PRES:SAVE command.
  • Page 48 [:SOURce]:TIMing:PRESet:RAPPend Syntax: [:SOURce]:TIMing:PRESet:RAPPend <SPD> Description: This command appends new record at the end of timing table. Data will be saved to non- volatile memory on TIM:PRES:SAVE command. Parameters: <SPD> Quoted string representing amplitude. The amplitude consists of two float numeric fields separated by comma. The first one represents timing interval in seconds and the second one amplitude in Ohms.
  • Page 49 [:SOURce]:TIMing:PRESet:ROW<IND_ROW>:RDELete Syntax: [:SOURce]:TIMing:PRESet:ROW<IND_ROW>:RDELete Description: This command deletes row from timing table. Data will be saved to non-volatile memory on TIM:PRES:SAVE command. Parameters: <IND_ROW> Range 1 ... Row count (1 - if omitted) Remarks: Overlapped command Example: TIM:PRES:ROW1:RDEL [:SOURce]:TIMing:PRESet:SAVE Syntax: [:SOURce]:TIMing:PRESet:SAVE Description: This command saves current sequence to non-volatile memory.
  • Page 50 [:SOURce]:UFUNction[:AMPLitude] Syntax: [:SOURce]:UFUNction[:AMPLitude] <DNPD> [:SOURce]:UFUNction[:AMPLitude]? Description: This command sets amplitude in USER FUNCTION mode. Node SOUR:UFUN also selects “USER FUNCTION” function if not already selected. Parameters: <DNPD> Range depends on translation curve, default value is 1.0 or minimal value that can be set Remarks: Overlapped command Value is set according to “Startup”...
  • Page 51 [:SOURce]:UFUNction:CURVe:PRESet:NAME Syntax: [:SOURce]:UFUNction:CURVe:PRESet:NAME <SPD> [:SOURce]:UFUNction:CURVe:PRESet:NAME? Description: This command allows reading and changing selected curve name. Data will be saved to non- volatile memory on UFUN:CURV:PRES:SAVE command. Parameters: <SPD> Quoted curve name. Upper alpha, lower alpha, digits and spaces are allowable. Maximum string size is 8 characters. Remarks: Overlapped command Example:...
  • Page 52 [:SOURce]:UFUNction:CURVe:PRESet:RCOunt? Syntax: [:SOURce]:UFUNction:CURVe:PRESet:RCOunt? Description: This commands returns actual number of records in curve table. Parameters: <DNPD> Integer value representing number of records for particular curve table Remarks: Overlapped command Example: UFUN:CURV:PRES:RCO? Response: 2 [:SOURce]:UFUNction:CURVe:PRESet:ROW<IND_ROW>:AMPLitude Syntax: [:SOURce]:UFUNction:CURVe:PRESet:ROW<IND_ROW>:AMPLitude <SPD> [:SOURce]:UFUNction:CURVe:PRESet:ROW<IND_ROW>:AMPLitude? Description: This command sets / retrieves selected row in curve table. Data will be saved to non-volatile memory on UFUN:CURV:PRES:SAVE command.
  • Page 53 [:SOURce]:UFUNction:CURVe:PRESet:SAVE Syntax: [:SOURce]:UFUNction:CURVe:PRESet:SAVE Description: This command saves current curve to non-volatile memory. Unsaved changes will disappear on restart, function change or selection of another curve. Parameters: None Remarks: Overlapped command Example: UFUN:CURV:PRES:SAVE [:SOURce]:UFUNction:CURVe:PRESet:UNIT Syntax: [:SOURce]:UFUNction:CURVe:PRESet:UNIT <SPD> [:SOURce]:UFUNction:CURVe:PRESet:UNIT? Description: This command sets / retrieves unit of selected curve. Data will be saved to non-volatile memory on UFUN:CURV:PRES:SAVE command.
  • Page 54 :STATus:OPERation:ENABle Syntax: :STATus:OPERation:ENABle <DNPD> :STATus:OPERation:ENABle? Description: This command enables bits in the Operational Data Enable register. Selected bits are summarized at bit 7 (OSS) of the IEEE488.2 Status Byte register. Parameters: <DNPD> Operational Data Enable register Remarks: Overlapped command Example: STAT:OPER:ENAB 2 STAT:OPER:ENAB? Response: 2 :STATus:OPERation[:EVENt]?
  • Page 55 :STATus:OPERation:PTRansition Syntax: :STATus:OPERation:PTRansition <DNPD> :STATus:OPERation:PTRansition? Description: This command allows set Operation Positive Transition Register. It is a decimal value which corresponds to the binary-weighted sum of all bits set in the register. Setting a bit in the positive transition filter shall cause a 0 to 1 transition in the corresponding bit of the associated condition register to cause a 1 to be written in the associated bit of the corresponding event register.
  • Page 56 :STATus:QUEStionable[:EVENt]? Syntax: :STATus:QUEStionable[:EVENt]? Description: This query returns the content of Questionable Data Event register. It is a decimal value which corresponds to the binary-weighted sum of all bits set in the register. Register is cleared after this query. Parameters: <DNPD> Questionable Data Event register Remarks: Overlapped command...
  • Page 57 :SYSTem:BEEPer:STATe Syntax: :SYSTem:BEEPer:STATe <BOOL> :SYSTem:BEEPer:STATe? Description: This command sets state of device beeper. Parameters: <BOOL> {ON|OFF|1|0} (default 1) ·ON device system beeper is enabled ·OFF device system beeper is disabled ·1 same as ON ·0 same as OFF Remarks: Overlapped command Value is not affected by reset or by *RST command Example: SYST:BEEP:STAT ON...
  • Page 58 :SYSTem:COMMunicate:GPIB:ADDRess Syntax: :SYSTem:COMMunicate:GPIB:ADDRess <DNPD> :SYSTem:COMMunicate:GPIB:ADDRess? Description: This commands allows set communication GPIB address Parameters: <DNPD> Range 1 ... 31 (default 2) Remarks: Overlapped command Value is not affected by reset or by *RST command Example: SYST:COMM:GPIB:ADDR 2 SYST:COMM:GPIB:ADDR? Response: 2 :SYSTem:COMMunicate:LAN:ADDRess Syntax: :SYSTem:COMMunicate:LAN:ADDRess <CPD>...
  • Page 59 :SYSTem:COMMunicate:LAN:GATE Syntax: :SYSTem:COMMunicate:LAN:GATE <CPD> :SYSTem:COMMunicate:LAN:GATE? Description: This command allows to change default gateway if DHCP is switched off. Interface must be restarted to take effect (see SYST:COMM:REST command). Parameters: <CPD> Range 000.000.000.000 ... 255.255.255.255 (default 255.255.255.255) Remarks: Overlapped command Value is not affected by reset or by *RST command Example: SYST:COMM:LAN:GATE 255.255.255.255 SYST:COMM:LAN:GATE? Response: 255.255.255.255...
  • Page 60 :SYSTem:COMMunicate:LAN:DHCP Syntax: :SYSTem:COMMunicate:LAN:DHCP <BOOL> :SYSTem:COMMunicate:LAN:DHCP? Description: This command allows switch On/Off DHCP. Parameters: <BOOL> {ON|OFF|1|0} (default 1) ·ON DHCP is On ·OFF DHCP is Off ·1 same as ON ·0 same as OFF Remarks: Overlapped command Value is not affected by reset or by *RST command Example: SYST:COMM:LAN:DHCP ON SYST:COMM:LAN:DHCP? Response: 1...
  • Page 61 :SYSTem:DATE? Description: This commands allows to change system device date. Parameters: <DNPD> Year, Range 2000 ... 2063 <DNPD> Month, Range 1 ... 12 <DNPD> Day, Range 1 ... 31 Remarks: Overlapped command Example: SYST:DATE 2012,12,31 SYST:DATE? Response: 2012,12,31 :SYSTem:ERRor[:NEXT]? Syntax: :SYSTem:ERRor[:NEXT]? Description: This command reads SCPI error (maximum 32) that occurred at first.

  • Page 62: Table 5 Keyboard Codes

    :SYSTem:KEY Syntax: :SYSTem:KEY <DNPD> :SYSTem:KEY? Description: This command allows send key code to the device the same way the user can press keys on front panel. Query returns last pressed key. Code KEY_0 KEY_1 KEY_2 KEY_3 KEY_4 KEY_5 KEY_6 KEY_7 KEY_8 KEY_9 KEY_SELECT...
  • Page 63 :SYSTem:LOCal Syntax: :SYSTem:LOCal Description: This command places device in the LOCAL mode and unlocks all keys on front panel of the device. The Command is valid only for RS232, LAN and USB interfaces. The device will not respond to commands in LOCAL mode. Parameters: None Remarks:...
  • Page 64 :SYSTem:TIME <DNPD>,<DNPD>,<DNPD> :SYSTem:TIME? Description: This commands allows set system device time (RTC). Parameters: <DNPD> Hours, Range 0 ... 23 <DNPD> Minutes, Range 0 ... 59 <DNPD> Seconds, Range 0 ... 59 Remarks: Overlapped command Example: SYST:TIME 10,45,15 SYST:TIME? Response: 10,45,15 :SYSTem:VERSion? Syntax: :SYSTem:VERSion?

  • Page 65: Scpi Error Codes

    6.10. SCPI Error codes Decade box distinguishes following SCPI error codes. These codes are reported on device display screen or can be read by SYST:ERR? Command. Error Message -100 "Command error" -101 "Invalid character" -102 "Syntax error" -103 "Invalid separator" -104 "Data type error"...

  • Page 66: Compatible Commands

    In case of control, the decade confirms correct setting with string „Ok<cr><lf>”. In case of query, MC642 returns set resistance/temperature value in the same format as it is on the display (number of decimal places). For example value -120 !C is returned as -120.000<cr><lf>. Positive numbers are sent without polarity sign.
  • Page 67 Command sets resistance value R0 at temperature 0 !C. Set value R0 is valid for all types of simulated temperature sensors. <DNPD> It represents resistance value R0 in . Limits are shown in chapter Technical data. MC642 confirms execution with string „Ok<cr><lf>”. In case of query MC642 returns set value in . Example: „R100<cr>”...

  • Page 68: Demo Program

    6.12. Demo program A simple operating program DecadeAssistant is supplied with the decade in order to provide easy operation of the instrument from the computer, and to check the RS-232 line (IEEE488 bus) of the instrument. The installation CD ROM contains a program (for MS WINDOWS only), you can communicate with the instrument through standard serial line (IEEE488) with.

  • Page 69: Maintenance

    To keep the device looking like new, clean the case and front panel keys using a soft cloth slightly dampened with either water or a non-abrasive mild cleaning solution that is not harmful to plastics. 8. Module 19” (version MC642-Vxx1x) Decade can be ordered as 19” module for easy assembling into a 19” rack. Module height is 3HE.

  • Page 70: Technical Data

    9. Technical data Resistance range 100 m … 20 M SHORT, OPEN terminals Pt sensor temperature simulation -200.000 !C … 850.000 !C (-328 !F … 1562 !F) Ni sensor temperature simulation -60.000 !C … 300.000 !C (-76 !F … 572 !F) Type of temperature sensors Pt10 …...

  • Page 71: Table 7 Mc642 Resistance Accuracy

    2.0001  - 20.0000  0.05 % + 15 m 20.001  - 200.000  0.05 % + 15 m Table 8 MC642 Pt simulation accuracy 200.01  - 2000.00  0.02 % 2.0001 k - 20.0000 k 0.02 % 20.001 k...
  • Page 72 Operation manual...

  • Page 73: Ordering Information - Options

    10. Ordering information – options MC642-V1xxx - RS232 MC642-V2xxx - RS232, LAN, USB, IEEE488 Housing MC642-Vxx0x - table version MC642-Vxx1x - module 19“, 3HE Example of order: MC642-V2010 - Programmable Resistance Decade 100m - 20M, RS232, LAN, USB, IEEE488, 19“ rack...

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