Agilent Technologies 87130A ESR? Event Status Register Query, Example Query, Syntax, Description

Remote Operation

*ESR? (Event Status Register Query)

*ESR? (Event Status Register Query)

Syntax

*ESR?

Description

The *ESR query returns the contents of the Standard Event Status Register.

The table shows each bit in the Event Status Register and the bit weight. When you read the Event Status Register, the value returned is the total bit weights of all bits that are high at the time you read the byte. The register is cleared to 0 on a *CLS and after *ESR? is executed.

Refer to the command *STB (Status Byte) on page 4-20to learn how the ESR is reported through the Status Byte.

Table 4-3 Event Status Register Bit Definitions

Bit	Weight	Name	Condition
7	128	PON	1	= an OFF to ON transition has occurred
6	64	URQ	(not used) always 0
5	32	CME	0	= no command errors
			1	= a command error has been detected
4	16	EXE	0	= no execution errors
			1	= an execution error has been detected
3	8	DDE	0	= no device dependent errors
			1 = a device dependent error has been detected
2	4	QYE	0	= no query errors
			1	= a query error has been detected
1	2	RQC	(not used) always 0
0	1	OPC	0	= operation is not complete
			1	= operation is complete

Example Query

OUTPUT 709;“*ESR?”

ENTER 709; Event

PRINT Event

Agilent 87130A Operating and Service Manual 4-15