The Standard Event Register - Agilent Technologies E3633A User Manual

Chapter 4 Remote Interface Reference
The SCPI Status Registers

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.
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.
Table 4-4. Bit Definitions – Standard Event Register
Bit Decimal
Value
0 OPC
1
1 Not Used 0
2 QYE
4
3 DDE
8
4 EXE
16
5 CME
32
6 Not Used 0
7 PON
128
Definition
Operation Complete. All commands prior to and
including an command have been executed.
*OPC
Always set to 0.
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.
Device Error. A self-test or calibration error occurred
(see error numbers 601 through 750 in chapter 5).
Execution Error. An execution error occurred (see error
numbers -211 through -224 in chapter 5).
Command Error. A command syntax error occurred (see
error numbers -101 through -178 in chapter 5).
Always set to 0.
Power On. Power has been turned off and on since the
last time the event register was read or cleared.
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