*STB?
Status byte query. Reads the Status Byte Register, which contains the status summary bits and the
Output Queue MAV bit.
Parameter Typical Return
(none) <bit value>
Read status byte: *STB?
The Status Byte is a read-only register and the bits are not cleared when it is read. Refer to Status
Overview for more information.
*TRG
Trigger command. Applies a software trigger (equivalent to IEEE 488.1 Device Trigger) for both
TRANsient and ACQuire trigger groups.
Parameter Typical Return
(none) (none)
Generate an immediate trigger:
INIT:ACQ
*TRG
*TST?
Self-test. Returns the errors found during the most recent power-on self-test.
Parameter Typical Return
(none) 0 (pass) or +1 (failed)
Perform self-test: *TST?
The instrument’s self-test function is performed when the instrument starts up. If a failure is detected,
the corresponding SCPI error is generated, and bit 2 of the STATus:QUEStionable register will be set.
When no failure is found the response will be +0. When one or more failures are found the response
value will be -330. In this case, SYST:ERR? will return specific failure messages (at first -330,"Self-test
error", and then the self-test error codes). See SCPI Error Messages for more information.
The *TST? command does not execute an actual self-test.
3SCPI Programming Reference
138 Keysight AC6800B Series Operating and Service Guide
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