# Unexpected integer scaling behavior

**URL:** <https://forum.inductiveautomation.com/t/unexpected-integer-scaling-behavior/2539>\
**Category:** Ignition\
**Created:** [January 21, 2011, 3:59pm UTC](https://forum.inductiveautomation.com/t/unexpected-integer-scaling-behavior/2539 "2011-01-21T15:59:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jplc](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@jplc](https://forum.inductiveautomation.com/u/jplc)\
**Post date:** [January 21, 2011, 3:59pm UTC](https://forum.inductiveautomation.com/t/unexpected-integer-scaling-behavior/2539/1 "2011-01-21T15:59:46Z")

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I’m trying to scale a timer preset from a SLC 5/05. It is in hundredths of seconds, so an integer value in the PLC of 272 represents 2.72 seconds. I’m using the Ignition OPC-UA driver.

Raw 0-1000  
Scaled 0-10

If the value in PLC is 272, Ignition reads 3.00 into my tag.  
If I write a value of 2.72 to the tag, Ignition writes an integer value of 300 to the PLC register.

Tag is currently a Float4.

Am I doing something wrong?

Update -  
I think I’ve found the problem. I originally built tag as INT2. I built a new tag as a Float4 addressing the same PLC register, and both tags started working.

I’ll try redoing this from scratch…

I’ll repost if I still have an issue.

Thanks,

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**Author:** ![jplc](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@jplc](https://forum.inductiveautomation.com/u/jplc)\
**Post date:** [January 21, 2011, 4:37pm UTC](https://forum.inductiveautomation.com/t/unexpected-integer-scaling-behavior/2539/2 "2011-01-21T16:37:25Z")

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Sorry, i jumped the gun on posting this as an issue at all. It was user error. I had a bi-directional binding to the integer value property on a numeric text field for the tag. That was converting each value I read or wrote to an integer.

I had copied the component and reused it. I later changed my tag type from INT2 to Float4 and applied the scaling, but it didn’t occur to me that I needed to change the binding to bind it to the float value property.

So - just a newbie issue, but maybe it’ll help someone else avoid the same trouble.

Thanks,  
J.P.

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**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [January 21, 2011, 5:04pm UTC](https://forum.inductiveautomation.com/t/unexpected-integer-scaling-behavior/2539/3 "2011-01-21T17:04:04Z")

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No problem- this kind of stuff does come up fairly often, so I’m sure someone else will find your post useful!

Regards,