How to change the format of a message from a s7 node to the format of a telegram message?

Hi, I have a telegram chat bot with which I communicate without problem, the problem I have when trying to send the temperature that I read through a plc with node s7, and is that I do not know how to change the message of the node s7 to the format that accepts telegram,

when I send the / Temperature command from the telegram bot to Node Red as you can see the message is returned as temperature, but what I am trying to do is return the value that node s7 is reading