12/3/2018 10:50 PM | |
Posts: 15 Rating: (0) |
Hello I'm trying to understand how works the scaling using AM2 RTD module. I don't have my PT100 sensor yet but i'm preparing the program. I just want to compare 2 T°C using ANALOG COMPARATOR but before that i entend to scale the value. I understood that the LOGO convert the PT100 analog input into 0 to 1000 points in internal register. So i was thinking i just have to apply a 0.25 gain and -50 offset to get the value from -50°C to 200°C with 0,25°C resolution. ( 0 point give -50 °C and 1000 point give +200°C) Is it that simple? Thank you very much for your help. I have the LOGO8 very last version. ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 12/4/2018 6:41:44 AMNew subject after splitting |
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12/4/2018 4:50 AM | |
Joined: 12/18/2014 Last visit: 9/27/2024 Posts: 33845 Rating: (4206)
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Hello K_parso, at first welcome to the forum. The A/D converter of an analog input of the LOGO! converts any analog signal (whether current, voltage or PT100) into 0 - 1000 units. It is 10 bits, but instead of 1024 units limited to 1000 units. AttachmentResolution_0BA8.Standard.zip (279 Downloads) |
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