Http post help in nodered iot2040 and s7-1200plc

HELLO TO MEMBERS

I AM USING NODERED WITH IOT2040.

I HAVE DONE HTTP POST COMMAND WITH USE OF FUNCTION AND HTTP REQUEST.

I NEED VARIABLE DATA IN MSG PAYLOAD

LIKE IN EXAMPLE I HAVE USED TEMPERTURE 260.0

I NEED TO SEND VARIABLE DATA AT 260.0.

I WILL COLLECT DATA FROM S7-1200 AS S7 NODE.

FLOW IS HERE