‘hble
l-6.
Status
Bit
Definitions
Status Byte
<it
NallM?
Defiition
0
Waiting for reverse GET
Not applicable for the HP 87633.
1
Waiting for forward GET
Not applicable for the HP 87633.
2 Check event-status
One of the enabled bits in event status register B has been
register B set.
3 Check error queue
An error has occurred and the message has been placed in
the error queue, but has not been read yet.
4
Message in output queue
A command has prepared information to be output, but it
has not been read yet.
6 Check event-status
One of the enabled bits in the event-status register has
register
been set.
6 Request service
One of the enabled status-byte bits is causing an SRQ.
7 Preset
An instrument preset has been executed.
Event-Status Register
sit
Name
0 Operation complete
Definition
A command for which OPC has been enabled has
completed operation.
1 Request control
The analyzer has been commanded to perform an operatior
that requires control of a peripheral, and needs control of
HP-IB. Requires pass-control mode.
2 Query error
The analyzer has been addressed to talk but there is
nothing in the output queue to transmit.
3 Sequence Bit
4 Execution error
6 Syntax error
A sequence has executed the assert SRQ command.
A command was received that could not be executed.
The incoming HP-IB commands contained a syntax error.
The syntax error can only be cleared by a device clear or
an instrument preset.
6 User request
The operator has pressed a front-panel key or turned the
RPG.
7 Power on
A power-on sequence has occurred since the last read of
the register.
l-44
HP-IB Programm~
‘ng and Command Reference Guide
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