Martel Electronics 3001 - Manual (Page 59)

*ESR? IEEE-488 RS-232 Sequential Overlapped
Event Status Register query. This command returns the contents of the Event Status
Register (ESR) and clears the register. See the Event Status Register (ESR) description in
section 9.7.
Parameter: <None>
Response: <value>
where <value> is the decimal equivalent of the ESR byte, 0 to 255
Example: *ESR?
61
This example returns decimal 61 (binary 00111101) which indicates
that bits 5 (CME), 4 (EXE), 3 (DDE), 2 (QYE) and 0 (OPC) are enabled.
FAULT? IEEE-488 RS-232 Sequential Overlapped
This command returns the most recent error code from the error queue. If the queue is
empty (no errors have occurred) it returns 0. The command is normally used to verify
that the previous command did what it was intended to do.
Parameter: <None>
Response: <value>
where <value> is one of the error codes documented in section 10.3.
Example: FAULT?
105
This example shows the error code which would occur if the previous
command attempted to set a value above 100 mA for current output.
The error code 105 indicates that the value was above the upper limit
for the selected output range.
X X X
X X X
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