# Convert 32 bit signed value

**URL:** <https://discourse.nodered.org/t/convert-32-bit-signed-value/46604>\
**Category:** General\
**Created:** [2 June 2021 15:16 UTC](https://discourse.nodered.org/t/convert-32-bit-signed-value/46604 "2021-06-02T15:16:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ceejm1](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@ceejm1](https://discourse.nodered.org/u/ceejm1)\
**Post date:** [2 June 2021 15:16 UTC](https://discourse.nodered.org/t/convert-32-bit-signed-value/46604/1 "2021-06-02T15:16:32Z")

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Hello,

I have searched this numerous times but my knowledge isnt quite sufficient to understand what I've found...

I am polling a couple of modbus registers as per the attached that return a 32bit signed value. What code can I use in a formula node to convert to decimal?

Thanks  
James

 ![32S](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/a/0aa51ddf74f77c420178187a7f501d66e93adc91.png)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [2 June 2021 16:02 UTC](https://discourse.nodered.org/t/convert-32-bit-signed-value/46604/2 "2021-06-02T16:02:09Z")

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Search the forum for buffer parser. Been covered many times. Example: [Modbus Buffer parser, 32 bit - #2 by Steve-Mcl](https://discourse.nodered.org/t/modbus-buffer-parser-32-bit/35815/2)

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<div class="post-metadata">

**Author:** ![ceejm1](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@ceejm1](https://discourse.nodered.org/u/ceejm1)\
**Post date:** [2 June 2021 16:16 UTC](https://discourse.nodered.org/t/convert-32-bit-signed-value/46604/3 "2021-06-02T16:16:42Z")

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Thanks for the pointer. I'll investigate that further.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [1 August 2021 16:17 UTC](https://discourse.nodered.org/t/convert-32-bit-signed-value/46604/4 "2021-08-01T16:17:02Z")

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