User manual

Publication 1768-UM001C-EN-P - November 2007
Develop Applications 79
Determining if Communication has Timed Out with a Specific
I/O Module
If communication times out with a device (module) in the I/O configuration
of the controller, the controller produces a fault code for the module.
• The GSV instruction gets the fault code for Io_Module and stores it in
the Module_Status tag.
• If Module_Status is any value other than 4, the controller is not
communicating with the module.