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Chapter 4 Remote Interface Reference
The SCPI Status Registers
103
4
*OPC
*ESE
Table 4-3. Bit Definitions – Standard Event Register
SYST:ERR?
Bit Decimal
Value
Definition
0 OPC
1
Operation Complete. All commands prior to and
including an *OPC command have been executed.
1 Not Used 0 Always set to 0.
2 QYE
4
Query Error. The power supply tried to read the output
buffer but it was empty. Or, new command line was
received before a previous query had been read. Or,
both the input and output buffers are full.
3 DDE
8
Device Error. A self-test or calibration error occurred
(see error numbers 601 through 750 in chapter 5).
4 EXE
16
Execution Error. An execution error occurred (see error
numbers -211 through -224 in chapter 5).
5 CME
32
Command Error. A command syntax error occurred
(see error numbers -101 through -178 in chapter 5).
6 Not Used 0 Always set to 0.
7 PON
128
Power On. Power has been turned off and on since the
last time the event register was read or cleared.