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(0-20)mA input

11/9/2012 8:05 AM	Rate (0)
AnsuAbinesh Experienced Member Joined: 12/14/2010 Last visit: 9/4/2024 Posts: 116 Rating: (0)	Dear all, Here i have used 0-20 mA input.(s7-400 cpu and1KF01 AI module). I know 4mA = 0 count and 20mA =27648 but i want to know for 0-20mA How Can i calculated above count?

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11/9/2012 11:25 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 10/17/2024 Posts: 5697 Rating: (715)	Hello, 0 mA= 0 and 20 mA= 27648, if you connect a 4-20mA sensor to it the Zeropoint off the measured value will be at 4mA=5529 Regards, Marcjan
	Last edited by: Marcjan at: 11/9/2012 2:08 PM Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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11/9/2012 2:07 PM	Rate (0)
nbk Posts: 197 Rating: (3)	Hi Marcjan, When I calculate, why does this value comes to5529 instead of 5629? (i mean if 27648 is distributed over 20 steps of 1mA each ,i.e 20 mA= 27648,then the first 4 steps should produce 5529 ...... or Am I going wrong somewhere?)
nbk Posts: 197 Rating: (3)
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11/9/2012 2:10 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 10/17/2024 Posts: 5697 Rating: (715)	Hello, It's because i made a typo, sorry. Corrected in earlyer post, thanks for letting me know. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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