ceilingwalker Lifetime Supporting Member Join Date Mar 2010 Location Phoenix, AZ Posts 1,586 Oct 3, 2020 #1 Hello all. Is it possible to run an RTD to an Compactlogix Analog input module, without any sort of a signal conditioner or anything like that? Thanks
Hello all. Is it possible to run an RTD to an Compactlogix Analog input module, without any sort of a signal conditioner or anything like that? Thanks
jdbrandt Lifetime Supporting Member J Join Date Oct 2002 Location Pennsylvania Posts 1,203 Oct 3, 2020 #2 ceilingwalker said: Hello all. Is it possible to run an RTD to an Compactlogix Analog input module, without any sort of a signal conditioner or anything like that? Thanks Click to expand... Likely not with any kind of accuracy. You could make it into a current source, by adding a few external resistors, but that would be a bunch of work.
ceilingwalker said: Hello all. Is it possible to run an RTD to an Compactlogix Analog input module, without any sort of a signal conditioner or anything like that? Thanks Click to expand... Likely not with any kind of accuracy. You could make it into a current source, by adding a few external resistors, but that would be a bunch of work.
Bullzi Lifetime Supporting Member B Join Date Jun 2012 Location Colorado Posts 1,530 Oct 3, 2020 #3 No, you will need to add a transmitter to convert the RTD signal to a 4-20ma or 0-10v output. There are lots of transmitters out there that are pretty cheap. That is going to be way cheaper than adding a RTD Card to the PLC.
No, you will need to add a transmitter to convert the RTD signal to a 4-20ma or 0-10v output. There are lots of transmitters out there that are pretty cheap. That is going to be way cheaper than adding a RTD Card to the PLC.
whk_tech Member W Join Date Nov 2019 Location Bay Of Plenty Posts 8 Oct 5, 2020 #4 RTD transmitter in the DCS panel
widelto Member Join Date Jul 2005 Location Barranquilla, Colombia Posts 3,392 Oct 5, 2020 #5 Peter Natchwey said, "using the right tools is the way to go". And this is not the case.