Sree Posted July 25, 2018 Report Share Posted July 25, 2018 Hi, I am learning to work with SM43JR20. In the spec sheet, for a 2 wire current transmitter to be connected to analog input it is shown that from the positive terminal of the supply connection should be made to the current transmitter and the negative terminal of the transmitter should be connected to AN0/AN1. But my doubt is the path is not complete, right? Then how is it going to measure the current? Can you guys suggest some current transmitters that I can use with this PLC model ? Also if those current transmitters can be coupled with thermo couples then it would be great . Thanks in advance Sreerag Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted July 25, 2018 MVP 2021 Report Share Posted July 25, 2018 Sounds like you have the connection correct - not sure why you think it wouldn't be a complete path. For temperature measurement, I believe you need the RA22 model for a thermocouple input, but you should be able to use an RTD with your model. 1 Quote Link to comment Share on other sites More sharing options...
Sree Posted July 25, 2018 Author Report Share Posted July 25, 2018 Thank you for your reply. I am not trying to connect thermocouple directly. I am trying to connect thermocouple to LKM 101/K2 (Temperature transmitter) and then connect it to the PLC. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted July 25, 2018 MVP 2021 Report Share Posted July 25, 2018 Seems like that should work fine. 1 Quote Link to comment Share on other sites More sharing options...
Sree Posted July 25, 2018 Author Report Share Posted July 25, 2018 Thank you so much Quote Link to comment Share on other sites More sharing options...
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