Agilent Technologies 34970A manual Bit Definitions Standard Event Register

Chapter 5 Remote Interface Reference

The SCPI Status System

The Standard Event Register

The Standard Event register group reports the following types of instrument events: power-on detected, command syntax errors, command execution errors, self-test or calibration errors, query errors, or the *OPC command is executed. Any or all of these conditions can be reported to the Standard Event summary bit through the enable register. To set the enable register mask, you must write a decimal value to the register using the *ESE command.

An error condition (Standard Event bits 2, 3, 4, or 5) will record one or more errors in the instrument’s error queue, with the following exception:

A measurement overload condition is always reported in both the Standard event register (bit 3) and Questionable Data event register (bits 0, 1, 9, or 10). However, no error message is recorded in the instrument’s error queue.

Read the error queue using the SYSTem:ERRor? command.

Bit Definitions – Standard Event Register

		Decimal
	Bit Number	Value	Definition
0	Operation Complete	1	All commands prior to and including *OPC have
1	Not Used	2	been executed.
			Returns “0”.
2	Query Error	4	The instrument tried to read the output buffer but
			it was empty. Or, a new command line was
			received before a previous query has been read.
3	Device Error	8	Or, both the input and output buffers are full.
			A self-test or calibration error occurred (see error
			numbers in the -300 range or any positive
4	Execution Error	16	error number in chapter 6).
			An execution error occurred (see error numbers
5	Command Error	32	in the -200 range in chapter 6).
			A command syntax error occurred (see error
6	Not Used	64	numbers in the -100 range in chapter 6).
			Returns “0”.
7	Power On	128	Power has been turned off and on since the last
			time the event register was read or cleared.

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