Hello!

I would like to give a setpoint to PLC over analog input 331-7KF02-2AB0. I've set input 6-7 to PT100 and in sw setup to RT Pt100 Std.

Now I've connected a potentiometer with 400Ohms to inputs 16-18, 17-19 as it is in manual Getting Started SM331 AI 8x12bit Part 2: PT100 and voltage on page 22.

I always get full signal 32000 in plc no matter what is the resistance of potentiometer.

What am I missing?

I've tried in my office with analogue module 1KF01 and it works. But on the "field" I cannot change it.

Thank you,

Kolma

Hello Wizard!

Yes of course I put in A position.

Kolma

Thank you, thank you. I was reading channel 7. Now it is ok, but I do not understand. So in that case channel 7 is unusable?

Bye,

Kolma