GW Instek PPH-1503 - Manual (Page 125)

REMOTE CONTROL
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executed prior to the execution of the *OPC command, the output buffer
could become saturated and the unit will stop taking readings.
Standard Event Register
The Standard Event Register reports the following types or events:
Power on has been detected, comman syntax errors, command execution
errors, self test and execution errs, query errors or if the *OPC command is
executed. Any one or more of these events will set the standard event
summary bit in the status byte register. To set a mask for the enable register, a
binary-weighted decimal number must be written using the *ESE command.
Bit Definition for the Standared Event Register
Bit number Decimal value Definition
0 Operation
Complete Bit 1
The *OPC command will set this
bit when all overlapping
operations have completed
(including the *OPC command
itself).
1 Not used 2 Not used, returns 0.
2 Query Error 4
The instrument tried to read the
error queue when the queue was
empty or the queue was read
before a new command was
given or the input/output buffers
are full.
3 Device Error 8 A self-test, calibration or other
device-specific error.
4 Execution
Error 16 An execution error.
5 Command
Error 32 A command syntax error.
6 Not used 64 Not used, return 0.
7 Power On 128 This bit is set if the power supply
has been reset from the last time