Using AI 16 CH Active Cards for some 4 wires signals

Dear All,

in my project, some signals have been added that generated by analyzers. these signals are 4 wires (it means DCS cards should be Passive), but i have only some AI cards 16 CH with 2 wires Terminal Block ( Active AI Card).

is it possible to use the existing AI modules (Active AI Cards) for these kind of signals? if Yes, how can i use the 16 CH AI cards for 3 wires signals? 

Thanks and Regards

Pouya

  • In reply to Pouya:

    Dear Pouya,

    That is right, it should work if you field equipment isn´t using some odd voltage in analog loop. (e.g. Siemens s7-1200 AO is 15 volts max... ).

    Connect one loop and see if it works.

    Niklas Flykt 

    Klinkmann Oy

    Key Account Manager safety products

    nikfly@gmail.com