# OMRON CJ2M-CPU33 PLC.How can I read a value of a data type like W40.00

**URL:** <https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116>\
**Category:** Industrial\
**Created:** [20 May 2024 09:27 UTC](https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116 "2024-05-20T09:27:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Leon001](https://avatars.discourse-cdn.com/v4/letter/l/4af34b/32.png) [@Leon001](https://discourse.nodered.org/u/Leon001)\
**Post date:** [20 May 2024 09:27 UTC](https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116/1 "2024-05-20T09:27:17Z")

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It's an internal relay address.Is it possible in this way?

 ![图片](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/d/3de703b2816355c41eef34e098103f62c8f06abd.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:** [20 May 2024 09:33 UTC](https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116/2 "2024-05-20T09:33:19Z")

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Yes, but it is highly inefficient to read single bits.

read the built in help:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/9/39ae9579e30998853ee57779430cd1a756127f88.png)

Make sure you have the latest version installed

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<div class="post-metadata">

**Author:** ![Leon001](https://avatars.discourse-cdn.com/v4/letter/l/4af34b/32.png) [@Leon001](https://discourse.nodered.org/u/Leon001)\
**Post date:** [20 May 2024 09:53 UTC](https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116/3 "2024-05-20T09:53:27Z")

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OK,thanks a lot.I'll check it

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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:** [19 July 2024 09:54 UTC](https://discourse.nodered.org/t/omron-cj2m-cpu33-plc-how-can-i-read-a-value-of-a-data-type-like-w40-00/88116/4 "2024-07-19T09:54:06Z")

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