JDS Uniphase HA9 Series User Manual page 44

SRE? Status Register
Returns the contents of the status register as an integer.
CNB? Condition Register
Returns the contents of the condition register as an integer (see the Status Reporting and
Service Request Control section).
TST? Self-test
Executes a self-test operation and returns the result. An error code is also placed into the error
queue. The queue can be queried with ERR? or LERR?. 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 operation fails:
•
330 = self-test failed
•
0 = no error occurred
LERR? Last Error
Returns an error number from an error queue. The queue can contain as many as five error
numbers. The first error read is the last error that occurred.
•
000 = error queue is empty
OPC? Input Buffer
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? Identification
Returns a string that identifies the manufacturer, the HA9 model number, the serial number (or
0 if unavailable), and the firmware level, for example, JDS UNIPHASE HA9x,01, 0,00.100
(where x = S for standard model and x = L for wide model).
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Programming Guide – 38