Giga-tronics 58542 - 2 Operation (Continued); 2.5.7 DIAGnostic Commands; 2.5.8 Calculate Subsystem Commands; 2.5.9 Sense Subsystem Commands

58542 VXIbus Universal Power Meter
ii Publication 21555, Rev. E, September 2002
2.5.7 DIAGnostic Commands ...................................................................................... 2-7
2.5.8 Calculate Subsystem Commands ...................................................................... 2-8
2.5.9 Sense Subsystem Commands ........................................................................... 2-9
2.5.10 Trigger Subsystem Commands .........................................................................2-11
2.5.11 GPIB Command Syntax ................................................................................... 2-12
2.5.11.1 Commands in Brackets............................................................... 2-12
2.5.11.2 Programmer Selective Parameters............................................. 2-12
2.5.11.3 Italics in Syntax Descriptions...................................................... 2-12
2.5.11.4 Query Format.............................................................................. 2-12
2.5.11.5 Linking Command Strings........................................................... 2-12
2.5.11.6 Measurement Data Output Format............................................. 2-12
2.5.12 Sensor Calibration & Zeroing ........................................................................... 2-17
2.5.12.1 Sensor Calibration ...................................................................... 2-17
2.5.12.2 Sensor Zero................................................................................ 2-18
2.5.13 Reading Power Measurements ........................................................................ 2-19
2.5.13.1 Special Errors ............................................................................. 2-20
2.5.14 Instrument Triggering ....................................................................................... 2-21
2.5.15 Arming the Triggering Cycle ............................................................................. 2-24
2.5.16 Channel Configuration ..................................................................................... 2-25
2.5.17 Cal Factor Correction ....................................................................................... 2-27
2.5.17.1 V
PROP
F Configuration................................................................. 2-29
2.5.17.2 Cal Factor Error Control.............................................................. 2-29
2.5.18 High Speed Measurements .............................................................................. 2-30
2.5.18.1 Operating Mode Control ............................................................. 2-30
2.5.18.2 Approximate Measuring Speeds................................................. 2-32
2.5.18.3 Triggering Notes ......................................................................... 2-33
2.5.18.4 Measurement Level Notes.......................................................... 2-33
2.5.19 Peak Power Sensor Triggering ........................................................................ 2-34
2.5.20 Averaging ......................................................................................................... 2-36
2.5.21 Relative or Referenced Measurements ............................................................ 2-37
2.5.21.1 Error Control ............................................................................... 2-37
2.5.22 Offsets .............................................................................................................. 2-38
2.5.23 SRQ & Status Monitoring ................................................................................. 2-39
2.5.23.1 Event Status Register................................................................. 2-41
2.5.23.2 Status Byte Register................................................................... 2-42
2.5.24 Min/Max Configuration & Monitoring ................................................................ 2-43
2.5.25 Limit Line Configuration & Monitoring .............................................................. 2-44
2.5.26 Analog Output .................................................................................................. 2-46
2.5.27 Saving & Recalling Configurations ................................................................... 2-49
2.5.28 Halting Operation ............................................................................................. 2-49
2.5.29 Preset Configuration ........................................................................................ 2-50
2.5.30 Identification Commands .................................................................................. 2-52
2.5.31 Calibrator Controls ........................................................................................... 2-53
2.5.32 Sensor EEPROM Commands .......................................................................... 2-53
2.5.33 Self-Test ........................................................................................................... 2-55
2.5.34 Error Messages ................................................................................................ 2-59
3
Theory of Operation
3.1 Introduction ..............................................................................................................................3-1
3.2 Circuit Description ....................................................................................................................3-1
3.3 Analog PC Board (A1) ...............................................................................................................3-2