# BadNotReadable (0x803a0000) The access level does not allow reading or subscribing to the Node.)

**URL:** <https://discourse.nodered.org/t/badnotreadable-0x803a0000-the-access-level-does-not-allow-reading-or-subscribing-to-the-node/102065>\
**Category:** General\
**Created:** [5 November 2026 13:45 UTC](https://discourse.nodered.org/t/badnotreadable-0x803a0000-the-access-level-does-not-allow-reading-or-subscribing-to-the-node/102065 "2026-11-05T13:45:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ALESSANDRODOSSANTOS](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/alessandrodossantos/32/108827_2.png) [@ALESSANDRODOSSANTOS](https://discourse.nodered.org/u/ALESSANDRODOSSANTOS)\
**Post date:** [5 November 2026 13:45 UTC](https://discourse.nodered.org/t/badnotreadable-0x803a0000-the-access-level-does-not-allow-reading-or-subscribing-to-the-node/102065/1 "2026-11-05T13:45:49Z")

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Bom dia pessoal,estou com o seguinte problema:  
tenho um projetinho basico no s7-1200 opcua ja habilitados.  
consigo monitorar as variaveis pelo UA EXPERT,porém pelo Node-RED não  
aparece a seguinte mensagem (StatusCode: BadNotReadable (0x803a0000) The access level does not allow reading or subscribing to the Node.)  
estava usando uma versao mais nova ,ai instalei uma mais antiga para ver se resolvia o problema e nada  
as versoes que estou usando sao:  
Node-RED version: v5.0.9  
Node.js version: v26.13.0

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**Author:** ![Rei\_Kurosawa](https://avatars.discourse-cdn.com/v4/letter/r/e5b9ba/32.png) [@Rei\_Kurosawa](https://discourse.nodered.org/u/Rei_Kurosawa)\
**Post date:** [5 November 2026 14:50 UTC](https://discourse.nodered.org/t/badnotreadable-0x803a0000-the-access-level-does-not-allow-reading-or-subscribing-to-the-node/102065/2 "2026-11-05T14:50:54Z")

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Você está usando exatamente o mesmo NodeId e o mesmo usuário no UA Expert e no Node-RED? Pode mostrar o NodeId usado em cada um, ocultando nomes internos e outros dados privados? Não envie senhas.

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**Author:** ![ALESSANDRODOSSANTOS](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/alessandrodossantos/32/108827_2.png) [@ALESSANDRODOSSANTOS](https://discourse.nodered.org/u/ALESSANDRODOSSANTOS)\
**Post date:** [5 November 2026 15:20 UTC](https://discourse.nodered.org/t/badnotreadable-0x803a0000-the-access-level-does-not-allow-reading-or-subscribing-to-the-node/102065/3 "2026-11-05T15:20:03Z")

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isso mesmo nos dois eu estou usando anonymous e o mesmo id  
por exemplo no UA expert ta asiim :  
2 SIMATIC.S7-1200.OPC-UA.Application:PLC\_1@192.168.2.100 ns=4;i=228 UDT\_PARTIDAS/CORRENTE\_NOMINAL\_MOTORES/VALOR\_ATUAL\_S VALOR\_ATUAL\_S 44.6 A String 12:17:59.909 12:17:59.909 Good

esse mesmo esta no Node\_RED