How To Fix /SCWM/MFS086 - Internal error occurred in communication layer of PLC &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 086

• Message text: Internal error occurred in communication layer of PLC &1

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.

Unfortunately, there isn't any extra information in this error notice.

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First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MFS086 - Internal error occurred in communication layer of PLC &1 ?

  The SAP error message /SCWM/MFS086 Internal error occurred in communication layer of PLC &1 typically indicates an issue with the communication between the SAP system and the Programmable Logic Controller (PLC) in a warehouse management context. This error can arise due to various reasons, including configuration issues, network problems, or software bugs.
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the PLC, such as network outages or misconfigured network settings.
  Configuration Errors: Incorrect settings in the SAP system or the PLC configuration can lead to communication failures.
  Software Bugs: There may be bugs in the SAP software or the PLC firmware that cause unexpected behavior.
  Timeouts: If the PLC takes too long to respond, the SAP system may time out and generate this error.
  Resource Limitations: Insufficient resources (like memory or processing power) on either the SAP server or the PLC can lead to communication failures.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the PLC is stable and functioning correctly. Use tools like ping or traceroute to diagnose network issues.
  Review Configuration Settings: Verify the configuration settings in both the SAP system and the PLC. Ensure that all parameters are correctly set according to the documentation.
  Update Software: Check for any available updates or patches for both the SAP system and the PLC firmware. Applying updates can resolve known bugs.
  Increase Timeout Settings: If timeouts are suspected, consider increasing the timeout settings in the SAP system to allow more time for the PLC to respond.
  Monitor Resource Usage: Use monitoring tools to check the resource usage on both the SAP server and the PLC. If resources are low, consider upgrading hardware or optimizing the system.
  Consult Logs: Review the application logs in SAP and the logs on the PLC for any additional error messages or warnings that could provide more context about the issue.
  Contact Support: If the issue persists after trying the above solutions, consider reaching out to SAP support or the PLC manufacturer for further assistance.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message.
  Documentation: Review the documentation for both SAP Extended Warehouse Management (EWM) and the specific PLC being used to ensure compliance with best practices.
  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 error between the SAP system and the PLC.