Status Reporting And Service Request Control - JDS Uniphase TB9 Series User Manual

SRE? SRQ Mask
Returns the contents of the SRQ mask register.
CNB? Condition Register
Returns the contents of the condition register.
TST? Self-Test
Executes a self-test operation. An error code that can be queried with ERR? or LERR? is
placed in an error queue. The query TST? also sets bit 7 in the status register.
•
0 = self-test passed
•
1 = self-test failed
ERR? Error Number
Returns an error number if the self-test fails:
•
330 = self-test failed
•
0 = self-test did not fail
LERR? Last Number Error
Returns a three-digit error number from the error queue. The queue can contain as many as
five error numbers. The first error read is the last error that occurred. LERR? returns 000 if the
error queue is empty.
OPC? Operation Complete
Returns the status of the input buffer:
•
1 = the input buffer is empty, for example, all commands have been executed
•
0 = the input buffer is not empty, for example, commands are still pending
IDN? Identifier
Returns a string that identifies the manufacturer, the TB9 filter series, the serial number (or 0 if
unavailable), and the firmware level, for example, JDS Uniphase, TB9, 0, 0.

Status Reporting and Service Request Control

The TB9 grating filter maintains two eight-bit registers that are used for status reporting and
enabling the GPIB service request interrupt:
•
Status register
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Operating and Maintenance Instructions – 24