Agilent Technologies 5000 Series manual ESR Standard Event Status Register, Query Syntax *ESR?

3Commands by Subsystem

*ESR (Standard Event Status Register)

(see page 530)

Query Syntax *ESR?

The *ESR? query returns the contents of the Standard Event Status Register. When you read the Event Status Register, the value returned is the total bit weights of all of the bits that are high at the time you read the byte. Reading the register clears the Event Status Register.

The following table shows bit weight, name, and condition for each bit.

321	854	&0(	(;(	''(	4<(	54/	23&	(65"
							
								(6(
								(6("

25

7R(6%ELWLQ 6WDWXV%\WH

5HJLVWHU

6WDQGDUG(YHQW 6WDWXV5HJLVWHU

6WDQGDUG(YHQW 6WDWXV(QDEOH 0DVN5HJLVWHU

Table 30 Standard Event Status Register (ESR)

Bit	Name	Description	When Set (1 = High = True), Indicates:
7	PON	Power On	An OFF to ON transition has occurred.
6	URQ	User Request	A front-panel key has been pressed.
5	CME	Command Error	A command error has been detected.
4	EXE	Execution Error	An execution error has been detected.
3	DDE	Device Dependent Error	A device-dependent error has been detected.
2	QYE	Query Error	A query error has been detected.

68 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference