This article contains tips for sending data to a Plain-text TCP data source from a Beckhoff PLC.

You can use the function block FB_SocketSend to connect and send data. For more information, see Beckhoff Information System - FB_SocketSend.

On a Linux-based system, you would send the following example string to send data value 123 for variable integer_1 and value 456 for variable integer_2, separated by a newline (\n).

DEVC 192.168.140.1 P4ssw0rd@integer_1=123\n@integer_2=456\n

However, Beckhoff uses $0A instead of \n and $40 instead of @ as described in Beckhoff Information System - STRING Constants. Therefore, the string on a Beckhoff should instead be:

DEVC 192.168.140.1 P4ssw0rd$40integer_1=123$0A$40integer_2=456$0A

For more information, see the main article: Plain-text TCP data source setup.