Keithley 2701, User Manual

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11-4 Status Structure Model 2701 User’s Manual
Clearing registers and queues
When the Model 2701 is turned on, the bits of all registers in the status structure are
cleared (reset to 0) and the two queues are empty. Commands to reset the event, event
enable registers, and the Error Queue are listed in Table 11-1. In addition to these
commands, any enable register can be reset by sending the 0 parameter value with the
individual command to program the register.
NOTE SYSTem:PRESet and *RST have no effect on status structure registers and
queues.
Table 11-1
Common and SCPI commands to reset registers and clear queues
Commands Description Notes
Reset registers
*CLS Reset all bits of the following event registers to 0: 1
Standard Event Register
Operation Event Register
Measurement Event Register
Questionable Event Register
STATus:PRESet Reset all bits of the following enable registers to 0:
Operation Event Enable Register
Measurement Event Enable Register
Questionable Event Enable Register
1
Clear error queue
*CLS Clear all messages from Error Queue 2
STATus:QUEue:CLEar Clear messages from Error Queue 3
SYSTem:CLEar Clear messages from Error Queue 3
Notes:
1. The Standard Event Enable Register is not reset by STATus:PRESet or *CLS. Send the 0 parameter value
with *ESE to reset all bits of that enable register to 0 (see “Status byte and service request commands,”
page 11-10).
2. STATus:PRESet has no effect on the Error Queue.
3. Use either of the two clear commands to clear the Error Queue.
2701-900-01.book Page 4 Wednesday, August 3, 2011 9:43 AM