# Error: I can't write data in my SPS with OPC-UA Client

**URL:** <https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487>\
**Category:** Industrial\
**Created:** [10 February 2020 10:17 UTC](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487 "2020-02-10T10:17:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jalal](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@Jalal](https://discourse.nodered.org/u/Jalal)\
**Post date:** [10 February 2020 10:17 UTC](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487/1 "2020-02-10T10:17:38Z")

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Hi, i am new in this forum, i have a problem with OPC UA Client.  
I am using Raspberry Pi4 and the Packet node-red-contrib-opcua ist installed on my Node-red.My Problem ist that i can read Data from my S7 1500 PLC but i can't write data in it ☹ . Does anybody has an idea what am i doing wrong? In the followin screenshot you can see which Errors i receive when i try to write data in PLC.  
Best regards  
Jalal

 ![Fehlermeldung-Node-Red](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/e/4e1622a70a54dbaf8aef86db67da5d97aac3dcf5.png)

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**Author:** ![jan-k](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jan-k/32/17738_2.png) [@jan-k](https://discourse.nodered.org/u/jan-k)\
**Post date:** [11 March 2020 03:45 UTC](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487/2 "2020-03-11T03:45:44Z")

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Hi Jalal,

Did you try to use the S7 node?

Best Regards.

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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:** [10 May 2020 03:45 UTC](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487/3 "2020-05-10T03:45:50Z")

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