11/11/2019 2:57 PM | |
Joined: 9/27/2006 Last visit: 9/25/2024 Posts: 12283 Rating: (2685) |
Hello DMK_DVF; An RTD is a resistance thermometer, and the signal it outputs is not possible to gauge with the onboard analog inputs of your CPU. The screenshot below shows the analog input information for a CPU 1214C. If you would like to have basic information of the construction, wiring and output signals of RTDs, this Wikipedia article can probide many details: https://en.wikipedia.org/wiki/Resistance_thermometer To read a PT 100 RTD in your CPU program, you have 2 choices: 1. Purchase a S7-1200 RTD analog input module and use it in your PLC configuration (one model is shown in the screenshot); 2. Search for a RTD to 0-10V transmitter that will convert the resistance maeasurement of the PT 100 to a voltage signal that the PLC can read on its onboard analog input channels. One example (there are many, many more manufacturers you can find on the web): https://www.intempco.com/en-ca/products/Temperature/Transmitters/RT711D Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 11/11/2019 15:05:10 |
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This contribution was helpful to1 thankful Users |
11/16/2019 4:00 AM | |
Joined: 4/11/2019 Last visit: 6/18/2024 Posts: 9 Rating: (1) |
Please try this, I always use this TC for convert Temperature sensor Autonics TZN, TZ series. Thanks |
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