Keysight E6640A, Measurement Applications User & Programmer Reference

Page: 181 / 2870

3 Programming the Test Set
Common Commands
Mode All
Remote Command *CAL?
Example *CAL?
Notes *CAL? returns 0 if successful
*CAL? returns 1 if failed
:CALibration[:ALL]? is the same as *CAL?
See additional remarks described with :CALibration[:ALL]?
Everything about :CALibration[:ALL]? is synonymous with *CAL? including all conditions, status
register bits, and couplings
Initial S/W Revision Prior to A.02.00
Mode All
Remote Command :CALibration[:ALL]:NPENding
Example CAL:NPEN
Notes :CALibration[:ALL]:NPENding is the same as :CALibration[:ALL] including all conditions, status
register bits, except this scpi command does not BLOCK the scpi session, so the user should use
status register bits to query if the calibration is successfully completed or not.
Typical usage is:
1) :CALibration:ALL:NPENding (Start a calibration)
2) :STATus:OPERation:CONDition? (Check if the calibration is completed or not, If bit 0 is set, then
the system is doing calibration, the user should repeat this scpi query until the bit is cleared )
3):STATus:QUEStionable:CALibration:CONDition? (Check if if there are any errors/failures in previous
calibration procedure
Initial S/W Revision X.14.20
Clear Status
Clears the status byte register. It does this by emptying the error queue and clearing all bits in all of the
event registers. The status byte register summarizes the states of the other registers. It is also responsible
for generating service requests.
Key Path
No equivalent key. Related key System, Show Errors, Clear Error Queue
Remote Command *CLS
Example *CLS Clears the error queue and the Status Byte Register.
Notes For related commands, see the SYSTem:ERRor[:NEXT]? command. See also the STATus:PRESet
command and all commands in the STATus subsystem.
Status Bits/OPC
dependencies Resets all bits in all event registers to 0, which resets all the status byte register bits to 0 also.
Backwards Compatibility
Notes In general the status bits used in the X-Series status system will be backwards compatible with ESA
and PSA. However, note that all conditions will generate events that go into the event log, and some
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