Gateway communication not possible if gateway port is used by other application

The IEC 61131-3 editor Gateway Server uses TCP port 1210 for communication.

Note

The gateway communication is not possible if gateway port is used by other application.

It must be ensured that the required gateway ports (1210 and 1211) are not occupied by different processes. Otherwise the gateway communication can not be established.

Possible applications that also use port 1210 and/or 1211 are:

  • Java update client
  • ABB 800xA System

If there are problems to establish gateway communication check the usage of port 1210 (via any port scanning tool, e.g. SysInternals) and close the application which uses this port.

By use of 800xA it is sometimes easier to change the port number of the gateway. In this example is the port number of the gateway changed from 1210 to a free port (for example 51000).

  1. To do this open the registry editor (Start/execute and type regedit).

    ⇒
    ../_images/56bc53a34d4cb82b0a317f340b271d5a1
    ../_images/7e6cde7f4d4d9b680a317f342c4cea8d1

  2. Change the registry key like in the screenshots from 1210 to 51000.

  3. After that the Gateway Server must be restarted.

    Close all applications.

    Close processes gateway.exe in Windows Task Manager.

  4. Change the port number of Gateway communication parameter from standard port number 1210 to 51000 (in this example).

  5. The OPC Server Configuration (OPCConfig.exe) must be renewed to enter this change in the OPCServer.ini.