Status - HP E1563A User Manual

Subsystem Syntax
Status System
Registers
Questionable Data
Register
The STATus subsystem reports the bit values of the Operation Data/Signal Register
and Questionable Data/Signal Register. It also allows you to unmask the bits you
want reported from the Standard Event Register and to read the summary bits from
the Status Byte Register.
The Operation Data/Signal Register and Questionable Data/Signal Register groups
consist of a condition register, an event register and an enable register. The STATus
:OPERation and :QUEStionable commands control and query these registers.

STATus

:OPERation:CONDiton?
:OPERation[:EVENt]?
:OPERation:ENABle < unmask >
:OPERation:ENABle?
:PRESet
:QUEStionable:CONDition?
:QUEStionable[:EVENt]?
:QUEStionable:ENABle < unmask >
:QUEStionable:ENABle?
The STATus system contains seven registers, four of which are under IEEE 488.2
control: the Standard Event Status Register (*ESR?), the Standard Event Enable
Register (*ESE and *ESE?), the Status Byte Register (*STB?) and the Status Byte
Enable Register (*SRE and *SRE?).
The QUEStionable data register indicates failures as described in the following table.
Limit failures occur at the sample rate so the condition register bits change rapidly
and cannot be read until the measurement completes. You should read the EVENt
register which latches the CONDition register once a measurement cycle to see if a
limit failure occurred. You will then have to determine which reading failed by
printing the reading number and the measurement value.
Bit #
0 voltage overload
8 calibration failure
9 Chan 1 limit failure
10 Chan 2 limit failure
11 Chan 3 limit failure
12 Chan 4 limit failure
Digitizer Command Reference
STATus
Description
83