# Node-red for millisecond Application

**URL:** <https://discourse.nodered.org/t/node-red-for-millisecond-application/68679>\
**Category:** General\
**Created:** [7 October 2022 12:08 UTC](https://discourse.nodered.org/t/node-red-for-millisecond-application/68679 "2022-10-07T12:08:44Z")\
**Posts on this page:** 1\
**Showing post:** 11

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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:** [17 October 2022 09:45 UTC](https://discourse.nodered.org/t/node-red-for-millisecond-application/68679/11 "2022-10-17T09:45:54Z")

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> [@Manikandan](#):
>
> Instead of Inject node, is there any other node I Can use instead of Inject as a starting Point of my Sequence ?

Yes, as I said before - DONT POLL

Instead, use the `subscribe` method.

> [@Steve-Mcl](#):
>
> > [@Manikandan](#):
> >
> > node-red-contrib-opcua
> 
> This node has built in examples - one of them being how to subscribe to 1 or multiple NodeIds.

There is NO need to poll every 200ms.

See also: [OPC UA multiple subscription - #2 by Steve-Mcl](https://discourse.nodered.org/t/opc-ua-multiple-subscription/68633/2)

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