Socket error during Bind operation

What does ERR_SOCKET_BIND mean?

An error occurred during the socket bind operation. This prevents the Modbus TCP server from associating a local IP address and port with the socket, indicating a problem with the configured network interface or port availability.

• Specified IP address for Modbus TCP server is invalid or not assigned to an active network interface.
• Modbus TCP port (default 502) is already in use by another application.
• Network interface is down or incorrectly configured.

Click steps to track your progress.

1. 1

   Verify the Modbus TCP server's configured IP address is correct and active on the controller's network interface.

2. 2

   Check if the Modbus TCP port (default 502) is already in use by another service on the controller.

3. 3

   Restart the controller to clear potential port conflicts and network interface issues.