Technical data

1 Introduction to SCPI
14 U2761A Programmer’s Reference
Standard Event register
The Standard Event register group reports the following types of
instrument events: power on detected, command syntax errors, command
execution errors, device errors (self-test or calibration), query errors, or
when an *OPC command is executed. All of these conditions can be
reported in the Standard Event summary bit through the enable register.
To set the enable register mask, key in a decimal value to the register
using the event status enable (*ESE)command.
Bit definitions: Standard Event register
The event register in the Standard Event is cleared when:
• you execute the clear status (*CLS)command
• querying the event register using the event status register (*ESR?)
command
The Standard Event enable register is cleared when you execute the
*ESE 0 command.
Bit number Decimal value Definition
0 Operation Complete 1 All commands prior to and including *OPC have been executed
1 Not Used Not Used 0 is returned
2 Query Error 4 The U2761A tried to read the output buffer but it was empty. Or, a
new command line was received before a previous query has been
read. Or, both the input and output buffers are full.
3 Device Error 8 A self-test, calibration, or other device-specific error has occurred
4 Execution Error 16 A command execution error occurred
5 Command Error 32 A command syntax error occurred
6 Not Used Not Used 0 is returned
7 Power On 128 Power has been turned off and on since the last time the event
register was read or cleared
NOTE
• When the command, execution, device, and query errors occurred, the related error
messages will be generated.
• For a complete listing of the error messages, refer to Chapter 16, “Error Messages” on
page 141.