Help get this topic noticed by sharing it on Twitter, Facebook, or email.
I’m excited

P116 controller and siemens plc & hmi

Sir E-pack has been installed but in the panel siemnes PLC and HMI also installed one k type thermocouple is there for temperature and referance going to PLC but same thermocuple wire go to controller116 then PLC HMI NOT showing temperature means parallel connection is not working.
1 person has
this question
  • Yes Sir,
    a thermocouple should never be connected in parallel to more then one input.
    Remember that you just have a few μV or mV as signal. So the impedance of the measure input does have a lot to do with the displayed value. For that reason Eurotherm thermocouple inputs do have a very high impedance.
    A solution could be a double thermocouple, or a measure transducer, or you can use the digital communication of the P116.
  • (some HTML allowed)
    How does this make you feel?
    Add Image

    e.g. kidding, amused, unsure, silly sad, anxious, confused, frustrated happy, confident, thankful, excited indifferent, undecided, unconcerned