How To Fix /SCWM/MFS122 - Unable to reach PLC &1 (&2); restart of communication channel &3

/SCWM/MFS122 - Overview

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 122

• Message text: Unable to reach PLC &1 (&2); restart of communication channel &3

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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/SCWM/MFS122 - Details

• The SAP error message /SCWM/MFS122 Unable to reach PLC &1 (&2); restart of communication channel &3 is related to the integration between SAP Extended Warehouse Management (EWM) and a Programmable Logic Controller (PLC) through the Manufacturing Execution System (MES) interface. This error indicates that the SAP system is unable to establish or maintain communication with the specified PLC.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the PLC.
  PLC Configuration: The PLC may not be configured correctly or may be offline.
  Communication Channel Issues: The communication channel (e.g., TCP/IP, OPC) may be down or misconfigured.
  Firewall Settings: Firewalls may be blocking the communication ports required for SAP to communicate with the PLC.
  SAP Configuration: Incorrect settings in the SAP EWM configuration for the MFS (Material Flow System) interface.
  PLC Software Issues: The PLC software may have crashed or is not functioning properly.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the