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Goals and Symptoms
The purpose of this resolution is to inform users of Momentum M1E processors that the Ethernet port can lock up under certain circumstances.
Facts and Changes
The Ethernet port on Momentum M1E processors will lock up if the PLC scan exceeds Watchdog Timer (WDT) timeout value and the constant sweep function is enabled. This will occur using any version of 984LL or IEC Exec equal to or less than version 1.26.
Causes and Fixes
This problem has been resolved in IEC Exec version 1.27e. Reference Resolution 187847 for further details.