3 Remote Interface Reference
136 E364xA User’s and Service Guide
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 3-4 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 (refer to error
messages 601 to 755 in “Self-Test Error Messages” on page 161 and
“Calibration Error Messages” on page 164).
4 EXE 16 Execution error. An execution error occurred (refer to error messages
-211 to -223 in “Execution Error Messages” on page 154).
5 CME 32 Command error. A command syntax error occurred (refer to error
messages -104 to -178 in “Execution Error Messages” on page 154).
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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