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Goals and Symptoms
The purpose of this Resolution is to inform users of Momentum M1E processors and 171CBB97030 Processor/4-Port Switches, of a potential problem with the TCP/IP MSTR function block.
Facts and Changes
If two or more TCP/IP MSTR function blocks are programmed and active at the same time, the function block may freeze its operation for 3-5 minutes but recover on its own without user intervention.
Causes and Fixes
This issue is resolved by upgrading the PLC to the appropriate Exec version listed below.
Momentum M1E Processors