Using the GPIB Command Set with the Model 2090
Model 2090 Multi-Device Controller
The
Serial Poll Response Byte
is the value returned to the
controlling program in response to a Serial Poll of the
PIB bus. The value of the response is the value of the
IB bus return the
value of its Status Byte Register. The Serial Poll is used to
respond to a Service Request from a device on the GPIB
bus.
The
Device Dependent Error Enable Register
allows the
bits of the Device Dependent Error Register to set the DDE
bit of the Status Byte Register. The bit pattern of this
register corresponds to that of the Device Dependent Error
Register. The DDE bit of the Status Byte Register will be
TRUE whenever any of the bits in the Device Dependent
Error Register and the corresponding bit in the Device
Dependent Error Enable Register are both TRUE.
Otherwise, the DDE bit is FALSE. The ERE GPIB
command is used to set the value of the register and the
ERE? command is used to query the current setting.
The
Device Dependent Error Register
is used to report
motion errors or other problems detected by the Model
2090 Multi-Device Controller. The bit pattern of this
register corresponds to the front panel errors reported by
the Model 2090 and is defined as follows:
G
Status Byte Register of the polled device where bit six is
the value of the RQS (Request Service) flag.
A
Serial Poll
is a GPIB command issued by the controlling
program to request that a device on the GP
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© ETS-Lindgren– April, 2006
Revision G– P# 399199
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