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3.1.8 Remote Interface Selection ........................................... 54 3.2 TRIGGER OPERATIONS ................................................................. 56 3.2.1 Trigger Mode .............................................................. 57 3.2.2 Trigger Source ............................................................ 59 3.2.3 Trigger Setting ............................................................ 60 3.3 MATH OPERATIONS .................................................................... 64 3.3.1 Percent(%)................................................................. 65 3.3.2 Average (AVG/MIN/MAX/COUNT) ................................... 66 3.3.3 Null(Relative) .............................................................. 67 3.3.4 Limits Test.................................................................. 68 3.3.5 MX+B ........................................................................ 70 3.3.6 dB/dBm ..................................................................... 71 3.4 SYSTEM RELATED OPERATIONS ....................................................... 74 3.4.1 Display....................................................................... 74 3.4.2 Beeper ....................................................................... 75 3.4.3 Reading Memory (Store & Recall)................................... 77 3.4.4 Sensitivity Band (Hold)................................................. 78 3.4.5 Initial Mode ............................................................... 80 3.4.6 Language ................................................................... 81 3.4.7 Error Condition............................................................ 81 3.4.8 Firmware Revision ....................................................... 82 3.4.9 Calibration.................................................................. 82 3.4.10 Self-test ................................................................... 82 4 REMOTE INTERFACE OPERATIONS......................................................... 83 4.1 PASS/FAIL OUTPUT FROM USB CONNECTOR ....................................... 83 4.2 SETTING UP FOR REMOTE INTERFACE ............................................... 84 4.3 REMOTE INTERFACE COMMANDS ..................................................... 85 5 ERROR MESSAGE ............................................................................. 95 5.1 ERROR TYPE ............................................................................ 95 5.1.1 Execution Errors .......................................................... 95 APPENDIX .......................................................................................... 99 A. SPECIFICATION LIST ...................................................................... 99 B. REMOTE INTERFACE REFERENCE ....................................................... 103 B.1 An Introduction to the SCPI Language............................... 103 B.2 Output Data Formats ...................................................... 106 B.3 The MEASure? Command ................................................ 106 B.4 The CONFigure Command ............................................... 108 B.5 The Measurement Configuration Command ........................ 109 B.6 The Math Operation Command......................................... 114 B.7 The Triggering Commands............................................... 116 B.8 The System-Related Commands....................................... 117 B.9 The SCPI Status Reporting .............................................. 120 B.10 Status Reporting Commands.......................................... 124 B.11 SCPI Compliance Information......................................... 125 B.12 GPIB (IEEE-488) Compliance Information ........................ 126 C. ABOUT APPLICATION PROGRAMS ...................................................... 128 C.1 Using MEASure? for a Single Measurement ........................ 128 C.2 Using CONFigure with a Math Operation ............................ 130 C.3 THE DEVQUERY FUNCTION.............................................. 133