# MODBUS conversion decimal

**URL:** <https://forum.inductiveautomation.com/t/modbus-conversion-decimal/98582>\
**Category:** Ignition\
**Tags:** ignition81, vision, modbus\
**Created:** [November 13, 2024, 8:46pm UTC](https://forum.inductiveautomation.com/t/modbus-conversion-decimal/98582 "2024-11-13T20:46:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pratik\_jain](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@pratik\_jain](https://forum.inductiveautomation.com/u/pratik_jain)\
**Post date:** [November 13, 2024, 8:46pm UTC](https://forum.inductiveautomation.com/t/modbus-conversion-decimal/98582/1 "2024-11-13T20:46:23Z")

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Hello all, I am trying to read the temo via modus from IDEC PLC.  
The HR registers are giving me data but its a multiplier of 10.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/e/ee9a96230ddc6de2fd083e45308612b3e0acfc34.png)  
The image shows 750 as the output but in reality it is 75.0F . How do I convert it ?  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/8/e88fb1efa5ebe5938b2d90a1484a9a13d5ddfd74.png)

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**Author:** ![Samuel\_Sueur](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Samuel\_Sueur](https://forum.inductiveautomation.com/u/Samuel_Sueur)\
**Post date:** [November 13, 2024, 8:47pm UTC](https://forum.inductiveautomation.com/t/modbus-conversion-decimal/98582/2 "2024-11-13T20:47:49Z")

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Hi,

Use tag scaling.

> **[Tag Scaling Properties | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/platform/tags/tag-properties/tag-scaling-properties)**
>
> Configuring a Tag's scaling will condition the data for use within the Ignition Designer. Scaling will take the raw PLC value driving a Tag, do some math, and use the resulting value as the value of that Tag. Scaling works both ways. When you write...

For your use case, you need to set the following:

Scale mode: Linear  
Raw Low: 0  
Raw High: 100  
Scaled Low: 0  
Scaled High: 10

The default settings should be enough.
