rayair Posted November 9, 2013 Report Share Posted November 9, 2013 is some one used the pt100 module ,how to configure the plc.with out any wire to the module the led re lit. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted November 11, 2013 MVP 2021 Report Share Posted November 11, 2013 The red LED is lit because the module knows the sensor is not connected. This is normal. I've uploaded a blank program with the first input of the IO-PT4 configured for a 100 ohm RTD mapped to MI 0. Look at the hardware configuration- it's on the rail below the PLC. Click on it to open it up. Joe T. IO-PT4.vlp Quote Link to comment Share on other sites More sharing options...
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