shanem717 (Customer) asked a question.

Edited August 10, 2022 at 3:05 PM
Click PLC 4-20mA monitor and relay output

I am needing to monitor a pressure transmitter 0-300 psi 4-20mA output into click plc with a C0-04AD-1 module and activate a output to a relay if the pressure reaches 250 psi or above, can some one help write a program that will do this, I am also transmitting the pressure to a hmi, thats why i didnt use a pressure switch instead

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Garry likes this.

  • Garry (Customer)

    Hi @shanem717 (Customer)​ 

    Can you tell us what CPU model you are using?

    What have you got so far with the program? Can you attach a copy?

    The Click PLC has a scaling feature when you set up the analog card.

    Click Analog Scaling SetupYou can see that DF1 is setup up to read 0 to 300 for an analog input from 4 to 20ma.

    The program would just be a comparison.

    Click Analog Scaling ProgramAttached is the program described above.

     

    Here is a series on the Click PLC that you can use for reference.

    https://accautomation.ca/series/click-plc/

     

    I hope this helps you out.

    Regards,

    Garry

    ACC Automation

    https://accautomation.ca/

     

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