How To Fix /SCWM/MFS457 - Communication points for PLC &1 have been checked recently

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 457

• Message text: Communication points for PLC &1 have been checked recently

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MFS457 - Communication points for PLC &1 have been checked recently ?

  The SAP error message /SCWM/MFS457 indicates that there is an issue with the communication points for a Programmable Logic Controller (PLC) in the context of the SAP Extended Warehouse Management (EWM) system, particularly when integrated with Manufacturing Execution Systems (MES) or similar systems.
  Cause:
  The error message typically arises when the system detects that the communication points for a specific PLC (identified by &1) have been checked recently, which may imply one of the following issues:
  
  Communication Failure: There may be a failure in the communication link between SAP EWM and the PLC.
  Configuration Issues: The communication points may not be correctly configured in the system.
  Recent Changes: Recent changes in the configuration or network settings may have affected the communication.
  Timeouts: The system may have experienced timeouts or delays in communication with the PLC.
  PLC Status: The PLC itself may be in a state that does not allow for communication (e.g., powered off, in maintenance mode).
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check PLC Status: Ensure that the PLC is powered on and functioning correctly. Verify that it is not in maintenance mode or experiencing any internal errors.
  
  
  Verify Network Connectivity: Check the network connection between the SAP system and the PLC. Ensure that there are no network issues, such as firewalls blocking communication or network outages.
  
  
  Review Configuration: 
  
  Go to the configuration settings in SAP EWM for the communication points related to the PLC.
  Ensure that the settings are correct and match the PLC's configuration.
  Check for any recent changes that may have been made to the configuration.
  
  
  
  Monitor Communication Logs: Review the communication logs in SAP EWM to identify any specific errors or warnings that may provide more context about the issue.
  
  
  Test Communication: Use any available tools or functions in SAP EWM to test the communication with the PLC. This can help identify if the issue is with the PLC or the SAP system.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the /SCWM/MFS457 error for any specific troubleshooting steps or patches that may be applicable.
  
  
  Contact Support: If the issue persists after performing the above checks, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  SAP EWM Documentation: Review the official SAP EWM documentation for details on configuring and troubleshooting communication with PLCs.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional troubleshooting steps for this error message.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the communication issue indicated by the error message /SCWM/MFS457.