# Modicon Addressing

**URL:** <https://forum.inductiveautomation.com/t/modicon-addressing/8021>\
**Category:** Ignition\
**Created:** [February 18, 2014, 9:17pm UTC](https://forum.inductiveautomation.com/t/modicon-addressing/8021 "2014-02-18T21:17:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mikehill100](https://avatars.discourse-cdn.com/v4/letter/m/bcef8e/32.png) [@mikehill100](https://forum.inductiveautomation.com/u/mikehill100)\
**Post date:** [February 18, 2014, 9:17pm UTC](https://forum.inductiveautomation.com/t/modicon-addressing/8021/1 "2014-02-18T21:17:05Z")

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Hello,

Came across a printout of Modicon addresses that I need to create tags for in Ignition. They are assigned to the bit level of the word.  
example:  
40322/01  
.  
.  
.  
40322/16

How would I go about addressing this bit in a tag? I have tried the [Modicon,bit=1]HR322 format, and am getting very strange numbers (if the tag is an integer sometimes they are not bits).

Any help/explanation would be great.

Thanks!

Mike

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**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 18, 2014, 9:28pm UTC](https://forum.inductiveautomation.com/t/modicon-addressing/8021/2 "2014-02-18T21:28:42Z")

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That bit=X syntax is outdated and will be removed from the revamped user manual, whenever that happens.

Try using something like this and see if you get better results:

```auto
[Modicon]HR322.1
```

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<div class="post-metadata">

**Author:** ![mikehill100](https://avatars.discourse-cdn.com/v4/letter/m/bcef8e/32.png) [@mikehill100](https://forum.inductiveautomation.com/u/mikehill100)\
**Post date:** [February 18, 2014, 9:45pm UTC](https://forum.inductiveautomation.com/t/modicon-addressing/8021/3 "2014-02-18T21:45:46Z")

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Thank you. (and thanks for getting back to me so quickly)  
They seem to be behaving better. Still need to check some stuff out.

What was strange is that sometimes I would get results using the 400232/08 address format though.

If my address was 30033/01  
I would use [PLC]N.IR33.1 ?

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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 18, 2014, 9:48pm UTC](https://forum.inductiveautomation.com/t/modicon-addressing/8021/4 "2014-02-18T21:48:04Z")

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[quote=“mikehill100”]  
If my address was 30033/01  
I would use [PLC]N.IR33.1 ?[/quote]

Yeah, that looks correct, assuming N is the Unit/Slave ID.