Q2821 IODevices using the ABRSLINX5 driver when talking via RSLinx over ethernet do not go offline when the ethernet connection fails

ArticleID: Q2821
Created: 22/06/1999
Last Updated: 23/11/2007
Suggested By: Stephen Burman

Applies To:

CitectSCADA 4.xx, 5.xx

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Summary:

When the ethernet cable to the PLC is disconnected, it is found that the corresponding Citect IODevice will not go offline.

Solution:

CIT has confirmed this to be a problem. The problem is that the driver does not recognise the error being returned by the lower level API, as being indicative of the unit being offline. This problem has been fixed in version 3.0 of the driver.

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