25
Note This alarm is obsolete.
Description Control/Status communication Error: [ ]
Possible Cause
• Cannot get diagnostic information from I/O pack or module
• I/O pack or module not able to load firmware
Solution
• Verify that the I/O pack or module configuration is correct.
• Rebuild the application and download the firmware and application to the I/O pack or module.
• Check network cables for proper connection.
• Verify that the switch is functioning correctly.
259
Description Application Runtime Error - [ ] Frame overruns occurred
Possible Cause Overloaded processor sequencer malfunction (one or more frame overruns occurred)
Solution
For a controller, perform the following to increase the frame idle time:
• Reduce the application or increase the EGD period.
• Upgrade the controller to one with a faster processor.
• Replace the controller.
For an I/O module, perform the following:
• From the ToolboxST application, rebuild the system, then download the application and configuration to the I/O module.
• Replace the I/O module.
44 GEH-6855_Vol_II GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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