6-4 Chapter6
Error Reporting
Status Reporting
Table 6-1 Status Byte: Status Bit Definitions
Status Byte
Bit Name Definition
0 Waiting for reverse GET Not available.
1 Waiting for forward GET Not available.
2 Check event-status register B One of the enabled bits in event status register B has been 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.
5 Check event-status register One of the enabled bits in the event-status register has been set.
6 Request service One of the enabled status-byte bits is causing an SRQ.
7 Preset An instrument preset has been executed.
Table 6-2 Event Status Register: Status Bit Definitions
Bit Name Definition
0 Operation complete A command for which OPC has been enabled has completed
operation.
1 Request control The analyzer hasbeen commanded to perform an operationthat
requires control of a peripheral, and needs control of GPIB.
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 A sequence has executed the assert SRQ command.
4 Execution error A command was received that could not be executed.
5 Syntax error The incoming GPIB 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.
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