Search the Community
Showing results for tags 'pt100'.
I have a samba SM70-J-RA22 and have configured the hardware for PT100 on input 0 and only ever get a reading of 32767 (open circuit). The jumpers 567 are BAB. The resistance across the sensor is 109ohms. I have tried input 1 as well and still only get 32767 when displaying on the hmi. When I setup a thermocouple “K” it works fine on each input. I connect one side of resistors to terminal 4 and the 2 legs off the other side of resistor to inputs 5 and 6. I did a firmware upgrade and a software upgrade and that did not help. Any guidance would be appreciated.