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Contents
Programming HP VXI Instruments
Common Commands and the Status System
Edition 1
Contents 1
Chapter 1
Introduction .................................................................................................................... 5
Chapter 2
Programming the Status System .................................................................................. 7
About this Chapter ........................................................................................................ 7
General Status Register Model ..................................................................................... 7
Condition Register ................................................................................................. 8
Transition Filter ..................................................................................................... 8
Event Register ....................................................................................................... 8
Enable Register ..................................................................................................... 8
An Example Sequence .......................................................................................... 8
Required Status Groups .............................................................................................. 10
Status Byte ........................................................................................................... 11
Standard Event Group ......................................................................................... 12
Standard Operation Status Group ........................................................................ 13
Questionable Data Group .................................................................................... 14
Status System Programming Examples ...................................................................... 15
Handling SRQs .................................................................................................... 15
Using MAV to Determine When Data is Available ............................................ 15
Example Program ......................................................................................... 16
Using a Service Request to Detect Errors ........................................................... 18
Example Program ......................................................................................... 19
Chapter 3
Command Reference ................................................................................................... 23
About this Chapter ...................................................................................................... 23
STATus....................................................................................................................... 24
Subsystem Syntax ......................................................................................... 24
:OPERation :CONDition? ................................................................................... 24
Comments ..................................................................................................... 24
Example ........................................................................................................ 24
:OPERation:ENABle ........................................................................................... 24
Parameters ..................................................................................................... 24
Comments ..................................................................................................... 24
Example ........................................................................................................ 24
:OPERation:ENABle? ......................................................................................... 25
Comments ..................................................................................................... 25
Example ........................................................................................................ 25
:OPERation[:EVENt]? ........................................................................................ 25
Comments ..................................................................................................... 25
Example ........................................................................................................ 25
:PRESet ............................................................................................................... 25
Example ........................................................................................................ 25
:QUEStionable :CONDition? .............................................................................. 25
Comments ..................................................................................................... 26