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Summary of Contents for Anritsu Site Master S251C
- Page 1 Site Master Model S251C Antenna and Cable Analyzer Programming Manual Hand-Held Tester for Transmission Lines and other RF Components www.valuetronics.com...
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Page 2: Limitation Of Warranty
WARRANTY The Anritsu product(s) listed on the title page is (are) warranted against defects in materi- als and workmanship for one year from the date of shipment. Anritsu’s obligation covers repairing or replacing products which prove to be defective during the warranty period. Buyers shall prepay transportation charges for equipment re- turned to Anritsu for warranty repairs. -
Page 3: Programming Overview
The Site Master is a DTE-type serial device. Communication between the Site Master and a PC is accom- plished over a null modem serial cable provided with the Site Master (Anritsu part number 800-441). Con- nect the cable to the Serial Interface connector on the Site Master Test Connector Panel and to the appropriate COM port connector on the PC. -
Page 4: Documentation Conventions
The Site Master serial port buffer is one byte wide. No internal buffer exists, so waiting for the response from the unit is essential. If the Site Master is not in remote mode, sending a second byte overwrites the original byte commanding it to enter remote mode. If control byte #69 is sent, the Site Master will enter re- mote mode at the end of the current sweep. -
Page 5: Table Of Contents
CONTROL BYTE DESCRIPTIONS ......................2 Setup System - Control Byte #1 (01h)..................... 2 Set Site Master Frequency - Control Byte #2 (02h)................2 Select Measurement Mode - Control Byte #3 (03h)................2 Set Site Master Scale - Control Byte #4 (04h) ..................3 Set Site Master Marker - Control Byte #5 (05h).................. -
Page 6: Control Byte Descriptions
Control Byte Descriptions Setup System - Control Byte #1 (01h) Description: Sets system status flags and switches. The Site Master acts on the entire byte. You must account for the state of each of the bits. For example, if you wanted to turn the LCD back light on without disturbing the other switches you would do the following: query the Site Master with control byte #20. -
Page 7: Set Site Master Scale - Control Byte #4 (04H)
1) Measurement Mode 00h : RL Frequency 01h : SWR Frequency 02h : Cable Loss Frequency 10h : RL Distance 11h : SWR Distance 21h : Insertion Loss 22h : Insertion Gain 40h : Power Monitor 50h : RF Source Mode Site Master Returns: 255 (FFh) Operation Complete Byte 224 (E0h) Parameter Error : Invalid Measurement Mode... -
Page 8: Set Site Master Marker - Control Byte #5 (05H)
Set Site Master Marker - Control Byte #5 (05h) Description: Sets an individual marker position and status in the current measurement mode. The Site Master sets the position of a marker by its relative position on the graph. The lowest position is 0 at the start frequency (or distance). -
Page 9: Set Dtf Parameter - Control Byte #7 (07H)
238 (EEh) Time-out Error Limit Values depend on the current display mode selected. Return Loss &: Limit is in thousandths of a dB Cable Loss Maximum value sent is 54000 which represents 54.00 dB Minimum value sent is 0 which represents 0.0 dB SWR: Limit is in thousandths (of ratio) Maximum value sent is 65530 which represents 65.53... -
Page 10: Set Time/Date - Control Byte #8 (08H)
Set Time/Date - Control Byte #8 (08h) Description: Sets the current time and date. This Time/Date is stamped into all stored sweeps (for users’ reference). The Site Master stores bytes as ASCII text. Recommended time form is “hh:mm:ss” (hour:minute:sec). Recommended date format is “mm/dd/yyyy” (month/day/year). The current time setting can be found by using control byte #17 to recall trace 0 and examining response bytes 31-38. -
Page 11: Single Sweep Mode On/Off - Control Byte #11 (0Bh)
5) Repeat steps 2-4 Byte to Follow: 1 byte 1) Serial Port Echo Status 00h = Off 01h = On Site Master Returns: 255 (FFh) Operation Complete Byte 224 (E0h) Parameter Error : Invalid serial port echo status 238 (EEh) Time-out Error Single Sweep Mode On/Off - Control Byte #11 (0Bh) Description: Enables or disables the Single Sweep Mode during Site Master modes of operation. -
Page 12: Set Site Master Data Points - Control Byte #14 (0Eh)
When this control byte is received, any old calibration data is lost. The Site Master does the calibration step specified by the second byte. After the measurements, the calculation step must be triggered to complete the calibration. After receiving the calculate byte, the Site Master checks to see if all calibration steps are completed. The Site Master calculates the resulting correction factors and sends an Operation Complete Byte #255 (FFh) to the computer. -
Page 13: Recall Sweep Trace - Control Byte #17 (11H)
1-4) Time/Date Stamp (In long integer format) Operation result: 255 (FFh) Operation Complete Byte 224 (E0h) Out of memory (Memory full) 238 (EEh) Time-out Error Recall Sweep Trace - Control Byte #17 (11h) Description: Queries the Site Master for sweep trace data. Bytes to Follow: 1 byte 0 - Last sweep trace before entering remote mode (sweep trace in RAM) 1- 200 = Specific saved sweep number (stored sweeps in Flash memory) - Page 14 Single limit line value (lowest byte) Segment # (1) Segment Status Start X (highest byte) Start X Start X Start X (lowest byte) Start Y (highest byte) 100) Start Y (lowest byte) 101) End X (highest byte) 102) End X 103) End X 104)
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Page 15: Save System Setup - Control Byte #18 (12H)
bit 2 : Bias – T On/Off bit 3 : High Power On/Off bit 4 : Not Used bit 5 : Cal On/Off bit 6 : Limit Type ( 0 = Single; 1 = multiple) bit 7 : Unit of measurement (1 = metric, 0 = English) 194) Status Byte 4: (LSB) -
Page 16: Recall System Setup - Control Byte #19 (13H)
Site Master Returns: 255 (FFh) Operation Complete Byte 224 (E0h) Parameter Error : Invalid store location 238 (EEh) Time-out Error Recall System Setup - Control Byte #19 (13h) Description: Recalls system setup parameters from a specific store location. The Site Master recalls all parameters described in Query System Status (14h) (except Serial Port Echo Status) from the specified store location. - Page 17 24) Frequency Marker 3 (highest byte) 25) Frequency Marker 3 (lowest byte) 26) Frequency Marker 4 (highest byte) 27) Frequency Marker 4 (lowest byte) 28) Frequency Marker 5 (highest byte) 29) Frequency Marker 5 (lowest byte) 30) Frequency Marker 6 (highest byte) 31) Frequency Marker 6 (lowest byte) 32) Single limit line value (highest byte) 33) Single limit line value...
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Page 18: Trigger Self-Test - Control Byte #21 (15H)
bit 4 : Site Master Marker 5 On/Off bit 5 : Site Master Marker 6 On/Off bit 6 - 7 : Not Used 135) Status Byte 2: (0 = Off, 1 = On) (LSB) bit 0 : not used bit 1 : Site Master Marker 2 delta On/Off bit 2 : Site Master Marker 3 delta On/Off bit 3 : Site Master Marker 4 delta On/Off bit 4-7: Not Used... -
Page 19: Read Fail Counters - Control Byte #22 (16H)
bit 4 : EEPROM read/write bit 5 : RTC battery bits 6-7 : Not Used. 2) Battery Voltage (highest byte) 3) Battery Voltage (lowest byte) 4) Temperature (highest byte) 5) Temperature (lowest byte) 6) Lock Fail Counter (highest byte) 7) Lock Fail Counter (lowest byte) 8) Integrator Fail Counter (highest byte) 9) Integrator Fail Counter (lowest byte) Notes: Battery Voltage in 1/10th of a Volt (e.g. -
Page 20: Delete Sweep Trace - Control Byte #25 (19H)
Delete Sweep Trace - Control Byte #25 (19h) Description: Delete single trace or all stored sweep traces in Site Master Bytes to Follow: 1 byte 0 = Delete all traces X = Delete single trace # X Site Master Returns: Operation Complete Byte # 255 (FFh) Upload Sweep Trace - Control Byte #26 (1Ah) Description: Uploads a sweep trace to the Site Master Bytes to Follow: 1255, 2287, or 4351 bytes (depending on resolution) - Page 21 Single Limit Line value Single Limit Line value (lowest byte) Segment # (1) Segment Status Start X (highest byte) Start X Start X Start X (lowest byte) Start Y (highest byte) Start Y (lowest byte) End X (highest byte) End X End X End X (lowest byte) End Y (highest byte)
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Page 22: Query Sweep Memory - Control Byte #27 (1Bh)
bit 1 : CW Mode On/Off bit 2 : Bias – T On/Off bit 3 : High Power On/Off bit 4 : Not Used bit 5 : Cal On/Off bit 6 : Limit Type ( 0b = Single; 1b = Multiple) bit 7 : Unit of measurement (1b = Metric, 0b = English) 181) Status Byte 4: (LSB) -
Page 23: Select Dtf Windowing - Control Byte #31 (1Fh)
Bytes to Follow: 1 byte Printer ID 0 – Epson Stylus Models 1 – Epson LQ Models 2 – Citizen PN Models 3 – NEC Superscript Models 4 – NEC Silentwriter Models 5 – Seiko DPU 411, 414 Models 6 – Canon BJC 50 7 –... -
Page 24: Set Rf Source Mode Frequency - Control Byte #33 (21H)
Set RF Source Mode Frequency - Control Byte #33 (21h) Description: Sets RF Source mode status and Frequency. Frequency should be sent in Hz. Bytes to Follow: 4 bytes 1) RF Frequency (highest byte) 2) RF Frequency 3) RF Frequency 4) RF Frequency (lowest byte) Site Master Returns: 255 (FFh) Operation Complete Byte... -
Page 25: Set Power Monitor Unit - Control Byte #40 (28H)
bit 2 : Relative Mode On/Off bit 3: Offset Mode On/Off bit 4 : Zero Mode On/Off bits 5- 7 : Not Used 2 - 5) Relative Mode Reference Power Level in dBm 6 - 9) Offset Mode Offset in dB 10 -13) Zero Mode Power Level in dBm 14 -17) Absolute Power Level in dBm 18 - 21) Power in dBm or dBr... -
Page 26: Zero Mode On/Off - Control Byte #43 (2Bh)
Zero Mode On/Off - Control Byte #43 (2Bh) Description: Enable or disable Power Monitor Zeroing Mode. Bytes to Follow: 1 byte 00h = Off 01h = On with trigger (current power level is referenced as -80 dBm) Site Master Returns: 255 (FFh) Operation Complete Byte 224 (E0h) Parameter Error : Invalid parameter 238 (EEh) Time-out Error... -
Page 27: Set Marker Valley - Control Byte #52 (34H)
Set Marker Valley - Control Byte #52 (34h) Description: Obtains Marker status information for valley value in the current trace. The value of the byte for marker number should be the marker number –1. For example, to set marker 1 to valley, send command number 52 followed by 0. -
Page 28: Automatically Save Runtime Setup - Control Byte #64 (40H)
Notes: Limit Value depend on the current display mode selected. Return Loss &: Limit is in thousandths of a dB Cable Loss Maximum value sent is 54000 which represents 54.00 dB Minimum value sent is 0 which represents 0.0 dB SWR: Limit is in thousandths (of ratio) Maximum value sent is 65530 which represents 65.53... -
Page 29: Write Custom Cable - Control Byte #80 (50H)
1-2) Model # (unsigned integer, 0Dh for S251C) 3-9) Extended Model # (7 bytes in ASCII) 10-13) Software Version (4 bytes in ASCII) The computer sends Enter Remote Mode Immediately byte #70 (46h) to the Site Master and waits for a response. -
Page 30: Set Baud Rate - Control Byte #197 (C5H)
The Site Master sets the position of a marker by its relative position on the graph. The lowest position is 0 at the start frequency (or distance). The highest position is at the stop frequency (or distance). The On/Off Status of a Marker can be toggled using this control byte. Bytes to Follow: 2 bytes 1) Marker Number (01h = marker 1, 02h = marker 2, 03h = marker 3, 04h = marker 4, 05h = marker 5, 06h = marker 6) -
Page 31: Read Main Serial Number - Control Byte #221 (Ddh)
Site Master Returns: 8 bytes “HH:MM:SS” 1) Hour 2) Hour 3) : 4) Minute 5) Minute 6) : 7) Second 8) Second Read Main Serial Number - Control Byte #221 (DDh) Description: Returns the 1 serial number Bytes to Follow: 0 bytes Site Master Returns: 4 bytes 1) Main Serial Number (highest byte) 2) Main Serial Number... -
Page 32: Parameter Definitions
Parameter Definitions Parameter # of bytes Step Example / Description Frequency 4 bytes unsigned 1 Hz 1000.3 MHz = 1000300000 Scale (RL, CL) 2 bytes unsigned 1 / 1000 dB 51.3 dB = 51300 (SWR) 2 bytes unsigned 1 / 1000 65.53 = 65530 (ratio) (G/IL) - Page 33 www.valuetronics.com...
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