7/3/2020 5:18 PM | |
Joined: 9/27/2006 Last visit: 9/24/2024 Posts: 12282 Rating: (2685) |
Hello T; Your S7-1200 CPU can handle 2 onboard analog inputs, but only with 0-10 V range. See the extract from the technical data of the S7-1211C CPU below. You cannot connect a PT100 sensor directly to your CPU analog inputs, An RTD is a variable resistance that changes with temperature, and you cannot read its signals with a 0-10 analog input. You have 2 choices: - use a 0-10 voltage transmitter for the RTD, here are a few manufacturers RTD to voltage transmitter vendors - purchase and install a S7-1200 RTD module, 6ES7231-5PD32-0XB0 https://support.industry.siemens.com/cs/ww/en/pv/6ES7231-5PD32-0XB0/td?dl=en Hope this helps, |
Last edited by: dchartier at: 07/04/2020 00:51:08 |
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