ETS-Lindgren 2090 Controller User Manual

Page 86

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

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

the Model 2090 and is defined as follows:

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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