Hi, does anyone know a way to get data from a OPC DA Server. Or does someone know another software as a Gateway OPC DA to UA or to OPC UA ? I need to get Data from a OPC DA to the cloud.

I use B&R PLCs and Node-Red. The PLC is capable of both OPC-DA and OPC-UA, or rather was. Since I last updated the runtime, the OPC-DA option is no longer present in the configuration. Only the UA option. If you have access to the PLC program and can enable OPCUA, that will be by far better than using DA. You did mention PVI, is this an ARwin installation? E.g, is this a B&R PC or PLC?

Hi Vinzenz, I think you can only get OPC UA from B&R when it is enabled in the project in Automation Studio. They don’t seem to offer it as part of Automation Net where the PVI and OPC DA live. You can use Softing Datafeed as an independent OPC UA server for B&R without needing the much dreaded B&R licence for PVI but it isn’t free either. I wonder how Softing bypasses the PVI licence requirement.... Also, we are about to write our own Python shell script to link OpenOpc with python OPC UA. Contact me if you want to know how that is going. I don’t know if we will be able to run this on the old Automation PC without impacting on their performance. We’ll see. Regards Koen

I think the B&R plc support a lot of protocols. Have you considered using the plc as a modbus master? Then you can use the Node Red Modbus node. I haven`t tested it myselve, but I guess it could work. Ola

It does work. Not as elegantly as OPCUA though. One thought I just had, the OP may be in a position where he does not have access to the source code in the PLC to change the communications to OPCUA. In B&R land, you must have the source code in order to make changes as there is no "upload" button. Unless the original programmer opted to store the source code on the PLC.

Have you checked opc expert? It might be cheaper than an full opc da/ua server like kepware or matrikon. It`s ment to be installed on top of a da server to make it «look like» ua. OPC Tunneler - download for free: OPC Expert The OPC tunneler features built into the OPC Expert software enables the transfer of OPC data by a mechanism other than DCOM. Download it for free. Ola

It is finally here: [Announce] node-red-contrib-opc-da :tada:

Did you try to connect with MX OPC Server 6.0 ? MXOPCConfiguratorQuickStart.pdf 2.57 MB I try it but always give me this message " 2147942405 - Unknown error!" :joy:

do you have any document for communication between the mx opc da to opc da client . i tried in many ways but failed .can you please help on this

is it compatible to mx opc da server(mitsubhusi scada)

[image] venkateshbokka232: is it compatible to mx opc da server As it is OPC (Open Process Control) yes, it is compatible. Error 2147942405 is a DCOM error. You need to read up on DCOM settings and apply them correctly. It can be difficult to configure and is often unique to your infrastructure and security policies - you will simply have to search the internet and learn about setting up DCOM.

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machadotiago 7 November 2019 19:19 13

It is finally here: [Announce] node-red-contrib-opc-da

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