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OPC UA in 4DiAC [message #1772151]

Wed, 06 September 2017 07:38

Fei Yin

Messages: 36
Registered: July 2017

Member

Hello, everyone,

i want to ask when the 4diac supports the Variable als Nodeclass because now the 4DIAC only supports the Mehod Call to read/write Data.

Regards
Fei Yin

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Re: OPC UA in 4DiAC [message #1772216 is a reply to message #1772151]

Wed, 06 September 2017 19:42

Alois Zoitl

Messages: 1584
Registered: January 2014

Senior Member

Hi,

this is already implemented in a first version. Please have a look in the updated OPC UA docs on how to use it. I hope this works for you.

Cheers,
Alois

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Re: OPC UA in 4DiAC [message #1772223 is a reply to message #1772216]

Wed, 06 September 2017 21:15

Fei Yin

Messages: 36
Registered: July 2017

Member

thank you， and now the 4diac client or subscribe/publish supports reading and writing from a variable node of OPC UA Server of other devices?

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Re: OPC UA in 4DiAC [message #1772279 is a reply to message #1772223]

Thu, 07 September 2017 12:44

Alois Zoitl

Messages: 1584
Registered: January 2014

Senior Member

As far as I understand yes. with publish you can write, currently you need Client to read. As soon as subscriptions are supported by the stack we use also a subscriber should be able to subscribe to a remote value node.

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