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READ+-10V analog input and DISPLAY in wincc bar

10/23/2011 2:16 PM	Rate (0)
Osman_ Posts: 243 Rating: (4)	hello I read analog value from PIW256 it's + and - 10V I scaled it in simatic manager with FC107. when value is +10V I read +1000 in DB10.DBW2 when value is -10V I read -1000 in DB10.DBW2 I created a tag in wincc with address DB10.dbw2 when I try to display it in wincc io field. I see +64535 etc.. it's because of this. https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&objId=22533347&load=treecontent&lang=en&siteid=cseus&aktprim=0&objaction=csview&extranet=standard&viewreg=WW it's not problem. Because I actually want to display this value in "bar" not in io field. Middle point of the bar will be 0. I tried some ways but it did not work. Forexample I made lineer scaling in tag. I wrote bar minimum value -1000 , +64535 nothing worked. bar moves stupidly can someone help? thanks
Osman_ Posts: 243 Rating: (4)
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10/23/2011 7:48 PM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 12/6/2025 Posts: 1525 Rating: (231)	What is the data type of the created tag ?
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10/24/2011 11:32 AM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/24/2025 Posts: 4434 Rating: (1487)	Hi, use SCALE blcock (old Standard Libraries / TI-S7 converting blocks, FC 105 / SCALE) to convert (scale) in Real. Working with real, this problem will not more apperar.
	Denilson Pegaia Siemens Industry Sector Technical Support
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10/24/2011 3:06 PM	Rate (0)
Osman_ Posts: 243 Rating: (4)	I converted the tag type from "Unsigned 16bit value" to "Signed 16bit value". and now it's ok thanks for help
Osman_ Posts: 243 Rating: (4)
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10/24/2011 6:38 PM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 12/6/2025 Posts: 1525 Rating: (231)	Osman_ I converted the tag type from "Unsigned 16bit value" to "Signed 16bit value". and now it's ok thanks for help Hello Osman, That's why I checked your Data type of your tag.
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