# B&R ex481 panel nucoil 4pp281

**URL:** <https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813>\
**Category:** HMI & Visualization\
**Tags:** power-panel\
**Created:** [January 21, 2026, 5:23pm UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813 "2026-01-21T17:23:05Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Jarek](https://avatars.discourse-cdn.com/v4/letter/j/FF8800/32.png) [@Jarek](https://community.br-automation.com/u/Jarek)\
**Post date:** [January 21, 2026, 5:23pm UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813/1 "2026-01-21T17:23:05Z")

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Hi I have problem with B&R ex481. Led status is Blinking Alternately is a faild Powerlink Manager failed red/green. Second problem is panel nucoil4pp281. i have only black view with word“ all values in hex” . what can i do? i think a panel is a broken.

 ![20260121_165806](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/6ceb4ef85c58c0bf542a7b0335aee81d9ce73f88.jpeg)

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**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\
**Post date:** [January 21, 2026, 5:53pm UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813/2 "2026-01-21T17:53:48Z")

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Hi @Jarek ,  
Welcome to the Community!  
EX481 is very old hw:

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/66dabdd04b4146c4102c0d4930eafd6687924bb9.png)  
I have found the documentation and attached to your post:

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/7/709913e48ce9d22db9e4153ecec8c6f6fa6459ef.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/a/a33aedb3a3d180d84d80f8784a9e76e7ca375ada.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/2/2705b99fd906d78797552b5552c60fca93a56c63.png)  
Please focus as first step on EX481, What do you think?  
We need more information about the status LED: OK,STATUS,TX,RX,L/C.  
Thanks  
Ciao  
Valerio

[7ex481501.pdf](https://community.br-automation.com/uploads/short-url/5KQnGMghX2InLAcUgHfgfkK5ugt.pdf) (934.4 KB)

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**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\
**Post date:** [January 21, 2026, 6:01pm UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813/3 "2026-01-21T18:01:38Z")

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> [@Jarek](#):
>
> 4pp281

For second issue regarding 4PP281, please download the user manual from our website because the size of the doc is bigger than 10MB so I can’t attach that to your post:

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/c/c96479b3bb47d37aa25008d22386af36b3d46a93.png)

Could you share with us all product name and the serial number?  
Thanks  
Ciao  
Valerio

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**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\
**Post date:** [January 22, 2026, 7:34am UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813/4 "2026-01-22T07:34:53Z")

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This is HW with CompactFlash. If you are lucky, maybe only the CF is broken. So you can try unplugging the old one and plugging in a new one (but for this you need the original project with your application), or restore it from a backup image.

That is what you can do. Otherwise, you need to contact the machine producer. B&R can help you restore the CF card, but you still need the project or image.

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**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\
**Post date:** [February 2, 2026, 7:40am UTC](https://community.br-automation.com/t/b-r-ex481-panel-nucoil-4pp281/9813/5 "2026-02-02T07:40:48Z")

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Hi @Jarek , what is status of your topic, can you update us?