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Chapter 4 Remote Interface Reference
The SCPI Status Registers
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4
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 4-3. Bit Definitions - Standard Event Register
An error condition (Standard Event register bits 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
SYSTem:ERRor?
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 748 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
number -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