Using IQS Products in an Automated Test Environment
Integrated Qualification System
185
Standard Status Data Structure
The following table presents a summary of the possible operations on STB
and SRE registers.
The diagram displayed on the next page is a useful aid in understanding
the general commands and how a service request (SRQ) is generated.
Using a service request, a device notifies the controller that an event
requiring special attention occurred. The controller will then find which
device generated a SRQ (its RQS bit is set) and the causes of it.
Register
Read
Write
Clear
STB
Use *STB?.
Use serial poll (GPIB
bus sequence that
allows retrieval of the
value without
interrupting the current
process).
Impossible to write;
the register content is
only modified when
the Event registers or
Queues are modified.
Use *CLS before
sending a query (to
clear the Event registers
and Queues and by the
same token clear the
STB register).
SRE
Use *SRE?.
Use *SRE with a value
equal to 0 to disable
the register or with a
value equal to 1 to
enable it.
Use *SRE with a
value equal to 0.
At IQS Manager
startup, the register
is set to 0.
Summary of Contents for IQS-600 Series
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