# Modbus Configuration Issue

**URL:** <https://forum.inductiveautomation.com/t/modbus-configuration-issue/65533>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [October 21, 2022, 3:51pm UTC](https://forum.inductiveautomation.com/t/modbus-configuration-issue/65533 "2022-10-21T15:51:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Alexandre\_Potvin](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@Alexandre\_Potvin](https://forum.inductiveautomation.com/u/Alexandre_Potvin)\
**Post date:** [October 21, 2022, 3:51pm UTC](https://forum.inductiveautomation.com/t/modbus-configuration-issue/65533/1 "2022-10-21T15:51:25Z")

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Hi

I am trying to connect a modbus device i did it in the past with a wago 750 and it was very easy as I use only DI.

Now i am trying to connect a card reader device and it's not working the card reader to modbus gave me this information :

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/d/2d6460c0aa8f3466c104c6248a70129e37acef96.png)

This is my address configuration

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/4/442db60e9aa5586ec6ba923944ace267c78ab351.png)

I also tried using HR/HRU/HRS in the designer without luck.

I can get one data on register 0 but the the other one wich is stange because it suposed to start at 1 :

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/8/48bf266eb249a17c7dbe6dbf3c48b455c9208ff1.png)

Any help would be apreciate.

Thank You

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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:** [October 21, 2022, 3:53pm UTC](https://forum.inductiveautomation.com/t/modbus-configuration-issue/65533/2 "2022-10-21T15:53:19Z")

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Why did you configure your Modbus Address as 1024 instead of 1?

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<div class="post-metadata">

**Author:** ![Alexandre\_Potvin](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@Alexandre\_Potvin](https://forum.inductiveautomation.com/u/Alexandre_Potvin)\
**Post date:** [October 21, 2022, 4:06pm UTC](https://forum.inductiveautomation.com/t/modbus-configuration-issue/65533/3 "2022-10-21T16:06:45Z")

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I was following a example on the docs part on the website. When i used that address was the first time I got data in the register 0. Tried with 1 and 0 and got nothing now.

The data in register 0 is always the same and is not what i am looking for data i am looking for is in register 16 and 17.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/d/1db62e28418bc6e3684473538dc3fbb151f5758a.png)