PVI or OPC UA?

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1

Hi Community!
I see few questions from few customers about the same topic: “For the new machine, with “new“ B&R CPU should I use PVI or OPC UA connection?“

Thanks
Ciao
Valerio

2

If possible and there are no technical difficulties, go always OPC UA way. :slight_smile:

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3

Hi,

pros OPC UA:

  • fast
  • open standard
  • os independend
  • many client implementations
  • many free of charge clients available

pros PVI:

  • can access resources in the PLC that OPC UA cannot access.
  • can be used for PLC installation

use OPC UA whenever it is possible.

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4

I’m very interesting about your opinion too @hobi @alexander.hefner …hehe

5

Hi …

As other already said … if you have the possibility, I would go with OPC-UA.

CHH

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6

Hi @valerio.manenti,

my opinion about it is very clear:

  • if you have the possibility, you should always use OPC UA as first choice (reasons: see @christoph.hilchenbac post :wink: )

  • there still might be (technical) reasons to use PVI (ANSL) instead of OPC UA today. But I would always recommend even then to analyse the requirements case by case, and also to take into consideration using a “mixture” of OPC UA and PVI/ANSL (which sounds crazy in the first moment, but would maybe make a future transformation to “OPC UA only” less difficult).

BG Alex

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