Experimental Physics and
Industrial Control System

I am using streamdevice to communicate with a VME crate controller.  One record sends a query string to the crate and receives a string as a reply.  The reply string contains a lot of information and needs to be mapped to several records.  The records that receive this information are all streamdevice records with I/O interrupt processing.  This all works.

My problem is that I want the severity of all the I/O interrupt records to be set to invalid if there is a problem with the communication to the crate.  The record that sends the query string has invalid severity in this case.  Can anyone suggest a nice way to propagate that invalid severity to all the I/O interrupt records?  I thought about disabling the records, but I think I would need to process the records to make this work, and I don't know how to cause I/O interrupt records to process.  Is there an asyn option that will cause I/O interrupt records to process after a connection problem?

thank you,
Stephen

Replies:

RE: Severity of I/O interrupt records Shepherd, EL (Emma)

Re: Severity of I/O interrupt records Tim Mooney

RE: Severity of I/O interrupt records Mark Rivers

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