# How to assign HRBCD\_32 Addresses?

**URL:** <https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068>\
**Category:** Ignition\
**Created:** [February 8, 2020, 6:42pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068 "2020-02-08T18:42:16Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![water2](https://avatars.discourse-cdn.com/v4/letter/w/3da27b/32.png) [@water2](https://forum.inductiveautomation.com/u/water2)\
**Post date:** [February 8, 2020, 6:42pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/1 "2020-02-08T18:42:16Z")

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Ignition 7.8.2

HRBCD\_32

If you were trying to get the values from say holding register 10 and 11 the syntax would be HRBCD\_3210?

How do you properly complete the address formula for any given address?

Ex. Holding register 4051 would look like what?

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**Author:** ![dcamp1](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@dcamp1](https://forum.inductiveautomation.com/u/dcamp1)\
**Post date:** [February 8, 2020, 8:13pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/2 "2020-02-08T20:13:14Z")

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**HR=Holding Registers**. So if you wanted to read the value from address 40001 (Which is the first address of the Holding Registers) you would want this **HR1**

4051(I’ve only ever seen 5 digit or 6 digit Modbus so I’m assuming you mean 40051) should look like this **HR51** , but if you do actually mean Modbus address 44051 then it would look like this **HR4051**

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**Author:** ![Matrix\_Engineering](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/matrix_engineering/32/19781_2.png) [@Matrix\_Engineering](https://forum.inductiveautomation.com/u/Matrix_Engineering)\
**Post date:** [February 8, 2020, 9:12pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/3 "2020-02-08T21:12:06Z")

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[https://docs.inductiveautomation.com/display/DOC/About+Modbus+Addressing](https://docs.inductiveautomation.com/display/DOC/About+Modbus+Addressing)

**HRBCD\_32** for 2 consecutive Holding Registers with BCD conversion.

I think you are correct with HRBCD\_3210, but I’ve never tried it so not guaranteed!

Why don’t you try it with a ModBus simulator if you don’t have your hands on the actual hardware at present?

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 10, 2020, 6:08pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/4 "2020-02-10T18:08:12Z")

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`HRBCD_32` is the correct syntax. Did you get this working?

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<div class="post-metadata">

**Author:** ![water2](https://avatars.discourse-cdn.com/v4/letter/w/3da27b/32.png) [@water2](https://forum.inductiveautomation.com/u/water2)\
**Post date:** [February 11, 2020, 12:03pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/5 "2020-02-11T12:03:48Z")

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I don’t think you understand. I know its HRBCD\_32. My question for my holding register 10 example would it be HRBCD\_3210? Or HRBCD\_32.10? Or even HRBCD\_32\_10?

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 11, 2020, 12:41pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/6 "2020-02-11T12:41:10Z")

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It would be `HRBCD_3210`

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<div class="post-metadata">

**Author:** ![water2](https://avatars.discourse-cdn.com/v4/letter/w/3da27b/32.png) [@water2](https://forum.inductiveautomation.com/u/water2)\
**Post date:** [February 11, 2020, 12:45pm UTC](https://forum.inductiveautomation.com/t/how-to-assign-hrbcd-32-addresses/32068/7 "2020-02-11T12:45:16Z")

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Thank you!