6-3
Introduction
This chapter documents the IEEE-488/RS-232 remote commands for the Calibrator.
Remote commands duplicate procedures that can be started from the front panel in local
operation. After the summary table is a complete alphabetical listing of all commands
complete with protocol information. Isolated headings in the alphabetical listing give the
parameters and responses, plus an example for each command. For information on
command use, see Chapter 5, “Remote Operation.”
Command Summary by Function
Tables 6-1 through 6-10 show and tell you about the command set for the Calibrator.
Table 6-1. Common Commands
Command Description
*CLS
(Clear status.) Clears the ESR, ISCR0, ISCR1, the error queue, and the RQS bit in the
status byte. This command stops pending operation complete commands (*OPC or
*OPC?).
*ESE
Puts a byte into the Event Status Enable register.
*ESE?
Shows the contents of the Event Status Enable register.
*ESR?
Shows the contents of the Event Status Register and clears the register.
*IDN?
Identification query. Shows instrument model number, serial number, and firmware
revision levels for the main and front panel CPUs, and inguard PGA.
*OPC
Sets bit 0 (OPC for "Operation Complete") in the Event Status Register to 1 when all
pending device operations are complete.
*OPC?
Shows a 1 after all pending operations are complete. This command makes program
execution pause until all operations are complete. (See also *WAI.)
*OPT?
Shows the installed hardware and software options.
*PUD
Protected user data command. This command lets you keep a string of bytes in
nonvolatile memory. This command works only when the CALIBRATION switch is in the
ENABLE position.
*PUD?
Shows the contents of the *PUD (Protected User Data) memory.
*RST
Resets the condition of the instrument to the power-up condition. This command holds off
execution of subsequent commands until it is complete. (Overlapped command.)
*SRE
Puts a byte into the Service Request Enable register (SRE).
*SRE?
Shows the byte from the Service Request Enable register.
*STB?
Shows the status byte.
*TRG
Changes the operation mode to thermocouple MEASURE, triggers a measurement, and
shows the value of the measurement. This command is equal to sending
"TC_MEAS;*OPC;VAL?".
*TST?
Starts a series of self-tests, then shows a "0" for pass or a "1" for fail. If faults are
detected, they are kept into the fault queue where they can be read by the ERR? query.
*WAI
Keeps further remote commands from being done until all previous remote commands
have finished.
Summary of Contents for 5502A
Page 4: ......
Page 12: ...5502A Operators Manual xii ...
Page 46: ...5502A Operators Manual 2 2 ...
Page 52: ...5502A Operators Manual 2 8 ...
Page 54: ...5502A Operators Manual 3 2 ...
Page 142: ...5502A Operators Manual 4 68 ...
Page 194: ...5502A Operators Manual 6 2 ...
Page 240: ...5502A Operators Manual 7 2 ...
Page 260: ...5502A Operators Manual 7 22 ...
Page 262: ...5502A Operators Manual 8 2 ...
Page 365: ...B 1 Appendix B ASCII and IEEE 488 Bus Codes ...
Page 366: ...5502A Operators Manual B 2 ...
Page 368: ...5502A Operators Manual B 4 ...
Page 378: ...5502A Operators Manual D 6 ...