1.5.14. Standard communication ports of the CODESYS runtime system¶
The runtime system uses different TCP/IP and UDP/IP ports for communicaiton protocols. These ports and corresponding settings are listet here.
Port(s) |
Protocol |
Communication Purpose |
Configurable |
Setting |
|---|---|---|---|---|
1740 – 1743 |
UDP / CODESYS Protocol |
Programming and client interface of the CODESYS Control runtime system. |
no |
|
11740 |
TCP / CODESYS Protocol |
Programming and client interface of the CODESYS Control runtime system. |
yes |
[CmpBlkDrvTcp]
ListenPort=<Port>
|
1217 |
TCP / CODESYS Gateway Protocol |
Communication between the CODESYS Gateway Client and the CODESYS Gateway. Most CODESYS clients (for example the CODESYS Development System) talk via the Gateway to the runtime systems. |
yes |
[CmpGwCommDrvTcp]
ListenPort=<Port>
|
8080 |
TCP / HTTP |
CODESYS Control web server used by the CODESYS WebVisu. |
yes |
[CmpWebServer]
WebServerPortNr=<Port>
|
443 |
TCP / HTTPS |
CODESYS Control web server used by the CODESYS WebVisu (TLS). |
yes |
[CmpWebServer]
WebServerSecurePortNr=<Port>
|
443 |
TCP / WebSocket |
Interface of the CODESYS Automation Server for the connection of the CODESYS Edge Gateway. |
no |
|
4840 |
TCP / OPC UA Binary |
CODESYS OPC UA Server. |
yes |
[CmpOPCUAServer]
NetworkPort=<Port>
|
22350 |
TCP + UDP |
Localhost communication between protected CODESYS products (for example the CODESYS Control runtime system) and the WIBU CodeMeter runtime residing on the same device. |
no |
|
1205 + 1206 |
UDP + TCP / CODESYS Redundancy Protocol |
CODESYS Redundancy communication to synchronize the redundant PLCs. |
yes |
Ports can be configured within the CODESYS programming system. |
1207 |
TCP (TLS) / CODESYS Visu Redundancy |
CODESYS Redundancy communication to synchronize the visualization pages. |
yes |
Ports can be configured within the CODESYS programming system. |

