Ladder Logic

[FuzzyLogic]

I know this is a DIY controller forum but I don't know where else I can post this question. Does anyone have examples of how to handle analog data in Ladder Logic? I have a 4-20ma PH transmitter that I want to try and interface to a PLC that I have. I can handle digital IO but never tried analog.

[Matrexz]

Just run the analog through a analog to digital converter. go to www.ti.com they have some their and i think you can actually sample some for free....been a while since i've checked the site..may have changed either way the converter chip is real cheap.