Status Registers

Overview

Table 4.10 Standard Event Status Register

Bit

Bit Weight

Bit Name

Description

0

1

Operation

Set if *OPC command has been received

 

 

Complete

and all pending operations have been

 

 

(OPC)

completed. The message, Event –800

 

 

 

Operation Complete, is loaded into the

 

 

 

Error/Event Queue.

1

2

Request Control

Not implemented. Always set to 0.

 

 

(RQC)

 

 

 

 

 

2

4

Query Error

Set if an attempt is being made to read

 

 

(QYE)

data from the output queue when no

 

 

 

output is either present or pending.

 

 

 

Suggests that data in the output queue has

 

 

 

been lost. See “Query Error List” on

 

 

 

page 121 for possible error codes.

3

8

Device Dependent

Set if there is a device-specific error. See

 

 

Error

“Device-Specific Error List” on page

 

 

(DDE)

120 for possible error codes.

4

16

Execution Error

Set if a program data element, following a

 

 

(EXE)

header, was evaluated by the power

 

 

 

supply as outside of its legal input range,

 

 

 

or is otherwise inconsistent with the power

 

 

 

supply’s capabilities. Suggests that a valid

 

 

 

program message could not be properly

 

 

 

executed due to some power supply

 

 

 

condition. See “Execution Error List” on

 

 

 

page 118 for possible error codes.

5

32

Command Error

Set if an IEEE488.2 syntax error has been

 

 

(CME)

detected by the parser, an unrecognized

 

 

 

header was received, or a group Execute

 

 

 

Trigger was entered into the input buffer

 

 

 

inside an IEEE 488.2 program message.

 

 

 

See “Command Error List” on page 118

 

 

 

for possible error codes.

6

64

User Request

Set if the bit is unmasked and the

 

 

(URQ)

instrument wishes to support a 488.2 user

 

 

 

request event. An event occurs when the

 

 

 

instrument detects the activation of a user

 

 

 

request local control. The message, Event

 

 

 

–600 User Request, is loaded into the

 

 

 

Error/Event Queue.

7

128

Power ON

Not implemented

 

 

(PON)

 

8–15

 

Reserved

Reserved for possible future use by IEEE.

 

 

 

Bit values are reported as zero.

 

 

 

 

78

Operating Manual for Multichannel Functionality (GPIB-M)

Page 80
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Xantrex Technology GPIB-M-XT, GPIB-M-XHR, GPIB-M-XPD, GPIB-M-XFR3, GPIB-M-HPD manual Been lost. See Query Error List on