Applies To:
  • CitectSCADA 6.xx
Summary:

How to make symbols on a page return to their default OFF status when a communications failure occurs to the IO Device the Symbol is associated with.

 

Solution:

If the symbol is only associated with one Tag on an IO device, when the IO device is offline, the symbol is showing ON and #com (providing the previous value is ON). If we try to visit the page again, the symbol becomes OFF with #com.

In order to make the symbol showing the correct status, another parameter need to be added. This can be achieved by using Cicode function:

IODeviceInfo( ).

In the [ON symbol when] field in graphic builder, fill in:

Tag AND IODeviceInfo(“IODevice Name”, 10)=”1”

The symbol will become OFF with #com when communication fails.

In CitectSCADA V7, the functionality of the ON/OFF symbol has been enhanced and the extra parameter is not required anymore.

 
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