Read RTD PT100 Sensor value in siemens plc using SM1231 RTD module
we have 3 wire sensor wiring is very important
connection connect red wire with M+ and make a loop with I+ and connect white wire with I- and connect black wire with M-.
also remember 24 supply to energize this card
Негізгі бет Lec#9 Siemens S7 1214 SM1231 RTD PT100 sensor
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