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analog value

Created by: Import-User-1 at: 5/31/2011 11:32 AM (3 Replies)

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5/31/2011 11:32 AM	Rate (0)
Import-User-1 Gold Member Joined: 8/10/2005 Last visit: 2/7/2022 Posts: 3609 Rating: (28)	izzat hello sir i am new in this field.I want to know about analog value scaling.FC 105 i've done the scaling.i wnt to monitor tempereature PT100. my hi_limit is 100 and low_limit is 0. i have simulate using plcsim.when i insert int value 13000 the out if it real it should be 40++ but i dont get it. already read about the scaling but ii still didnt get it. that is my understanding to use scale. if iam wrong correct me. my intension is to monitor on Wincc. if u have time can u tell me how to do auto tuning pid. tq sir.hope u can help me as i am in my final year.

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5/31/2011 11:45 AM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	hello, About FC105 - How and for which analog measurements can you use the function FC105 "SCALE" to convert the integer values (INT) into real number values? Is this a real system or you are making simulation? If this is a real system, give the type of existing hardware there. best regards, Hristo Mihalev

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5/31/2011 12:06 PM	Rate (0)
Niranjan Prasad Posts: 691 Rating: (36)	Import-User-1 izzat hello sir i am new in this field.I want to know about analog value scaling.FC 105 i've done the scaling.i wnt to monitor tempereature PT100. my hi_limit is 100 and low_limit is 0. i have simulate using plcsim.when i insert int value 13000 the out if it real it should be 40++ but i dont get it. already read about the scaling but ii still didnt get it. that is my understanding to use scale. if iam wrong correct me. my intension is to monitor on Wincc. if u have time can u tell me how to do auto tuning pid. tq sir.hope u can help me as i am in my final year. What type of device you are using for the Temperature? Is it 4-20mA or 0-10 V etc.? But if is PT100 or RTD then you need not use scaling block like FC105. Just get the Count value and divide the Count Value by 10 normally. Also refer your module spectrum regarding the resolution of the Analog Module. In case you have the high resolution, you may be required to divide the count value by 100.
Niranjan Prasad Posts: 691 Rating: (36)
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5/31/2011 12:11 PM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	Or use a transducer (PT100->4-20mA) and then FC105... best regards, Hristo Mihalev

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