Remote Interface Reference 4
Keysight E3633A and E3634A User’s Guide 135
The standard event register
The Standard Event register reports the following types of instrument events:
power on detected, command syntax errors, command execution errors, self-test
or calibration errors, query errors, or when an
*OPC
command is executed. Any or
all of these conditions can be reported in the standard event summary bit (ESB,
bit 5) of Status Byte register through the enable register. To set the enable register
mask, you write a decimal value to the register using the
*ESE
(Event Status
Enable) command.
Table 4-4 Bit Definitions – Standard Event Register
An error condition (Standard Event register bit 2, 3, 4, or 5) will always record
one or more errors in the power supply’s error queue. Read the error queue using
the
SYST:ERR?
command.
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.
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