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.
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.
This issue is resolved by upgrading the PLC to the appropriate Exec version listed below.
Momentum M1E Processors
171CBB97030 Processor/4-Port Switches
- 984LL Exec version 1.28 or higher (171CCC96020, 171CCC96030, 171CCC96030, and 171CCC98030)
- IEC Exec version 1.29 or higher (171CCC96020 and 171CCC96030)
(allows either IEC or 984LL Exec installation)
- 984LL Exec version 1.03 or higher
- IEC Exec version 1.05 or higher
Legacy KB System (APS) Data: RESL191634 V1.0, Originally authored by DaDz on 04/10/2008, Last Edited by DaDz on 04/10/2008
Related ranges: Modicon Momentum