# Data collection issue
**URL:** https://discourse.nodered.org/t/data-collection-issue/79498
**Category:** Dashboard
**Tags:** node-red-dashboard
**Created:** [30 June 2023 03:59 UTC](https://discourse.nodered.org/t/data-collection-issue/79498 "2023-06-30T03:59:42Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@GAOJY11](https://discourse.nodered.org/u/GAOJY11)
#### Post date: [30 June 2023 03:59 UTC](https://discourse.nodered.org/t/data-collection-issue/79498/1 "2023-06-30T03:59:42Z")
Recently I tried to catch the value of a displacement sensor from the OPC UA node, may I know why i receive the null value. May i know is there anyway to configure the data so i can receive a correct value?
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [30 June 2023 06:44 UTC](https://discourse.nodered.org/t/data-collection-issue/79498/2 "2023-06-30T06:44:34Z")
I'm afraid there is nowhere near enough information to help. Anything we tell you would be pure speculation.
If you want further assistance, please provide details like version numbers, what you have tried, screenshots etc.
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### Author:  [@mikakaraila](https://discourse.nodered.org/u/mikakaraila)
#### Post date: [10 July 2023 08:14 UTC](https://discourse.nodered.org/t/data-collection-issue/79498/3 "2023-07-10T08:14:31Z")
Have you checked console or status code that server will return?
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [9 August 2023 08:14 UTC](https://discourse.nodered.org/t/data-collection-issue/79498/4 "2023-08-09T08:14:52Z")
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