6/21/2019 2:26 PM | |
Joined: 12/18/2014 Last visit: 12/8/2023 Posts: 31576 Rating:
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I assume that you refer to this topic: Retrieving analog value from expansion module Without an indication of which physical measuring range the sensor connected to AI1 has, nothing can say about the values. The LOGO! converts each analog input signal into 0 to 1000 units. Whether 0-10V, 0 / 4-20mA or PT100 / 1000. At 4-20mA you can only use 800 units as the first 200 units are used for the 4mA. In your case, the value 202 on AI1 means that the physical value is about 0. You need to scale the value of the analog input to the physical value of the sensor using an analog amplifier. |
6/21/2019 2:29 PM | |
Joined: 12/18/2014 Last visit: 12/8/2023 Posts: 31576 Rating:
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See this Siemens FAQ: |
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