Making Connections to Analog Input to SM43JR20

[Sree]

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

[Flex727]

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.

[Sree]

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.

[Flex727]

Seems like that should work fine.

[Sree]

Thank you so much