# Telegraf modbus issue

**URL:** <https://community.influxdata.com/t/telegraf-modbus-issue/17615>\
**Category:** Systems\
**Created:** [January 13, 2021, 10:05am UTC](https://community.influxdata.com/t/telegraf-modbus-issue/17615 "2021-01-13T10:05:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Stef\_Van\_Poucke](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/stef_van_poucke/32/5609_2.png) [@Stef\_Van\_Poucke](https://community.influxdata.com/u/Stef_Van_Poucke)\
**Post date:** [January 13, 2021, 10:05am UTC](https://community.influxdata.com/t/telegraf-modbus-issue/17615/1 "2021-01-13T10:05:34Z")

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Hi,

I’m reading a modbus register with telegraf. I’ve tried multiple datatype’s and 2 make sense except…  
Float shows the correct value except when it should show 0, in that case I get 2147483648, so 1000 0000 0000 0000 0000 0000 0000 0000 in binary.  
When I pick Float-IEEE the graph I get looks good but its scaled down somehow so I get value’s with 10^-42.  
The first graph is the IEEE version, the second is the Float

 ![Capture](https://us1.discourse-cdn.com/flex023/uploads/influxdata/original/2X/c/c1e76ed71159f252812481468b76b0387cfbab2c.png)