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How to read value from SM1231

Created by: kriukovs at: 11/4/2014 4:34 PM (4 Replies)

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11/4/2014 4:34 PM	Rate (0)
kriukovs Posts: 2 Rating: (0)	Hello All! I have a controller S7-1200 (CPU1214C DC/DC/DC) with module SM1231 (6ES7 231-4HD32-0XB0). Module Documentation 13-bit. But, I read the entry code is much more than 2 in 13 degree (8192). What is the actual range of values at the entrance. Input is set to 4-20 mA current measurement. Sorry for my english.
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11/4/2014 4:59 PM	Rate (0)
LarryAm Silver Member Joined: 9/19/2011 Last visit: 12/12/2022 Posts: 134 Rating: (33)	The input is filtered extending the number of returned bits. 20 mA returns a value of 27648 12 mA returns a value of 13824 4 mA returns a value of 0. I hope that this helps, Larry

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This contribution was helpful to 1 thankful Users kriukovs

11/4/2014 7:01 PM	Rate (0)
kriukovs Posts: 2 Rating: (0)	LarryAm, thank you! It's right
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11/4/2014 8:20 PM	Rate (0)
William_B Posts: 5225 Rating: (1160)	You may wish to have a look at the NORM_X and SCALE_X functions which can help you to rescale the analog value to engineering values. w
William_B Posts: 5225 Rating: (1160)
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This contribution was helpful to 1 thankful Users kriukovs

2/19/2020 8:45 AM	Rate (0)
fatemieh.m Regular Member Joined: 8/7/2018 Last visit: 1/23/2023 Posts: 30 Rating: (2)	You can use NORM_X and SCALE_X f
	Experience with the process, Steel Making, and logistic systems.
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