Past experience with OPC(going back 20 years)is that the OPC client needs to connect to a OPC server that is then connected to the field devices to get tag data. In other word, for a PLC, it would have to be programmed, compiled, and running to get tag data to OPC. For modern systems, OPC UA is the choice, but it looks like the same limitations apply. There is a standard for importing and exporting tags via an XML NodeList. Does anyone know of any PLC's or HMI's that utilize offline OPC UA tag import and export? For HMI's, I am primarily interested in traditional machine mounted touchscreens, not PC-based SCADA systems.
OPC UA Import and Export
- Thread starter sparky66
- Start date
widelto
Member
Take a look at OPC Expert at : https://opcti.com/opc-expert.aspx
You can try for free for two hours.
You can try for free for two hours.
I had a project using Maple HMI, software is EBPro. It is capable of talking to almost any PLC. I was using Modbus/TCP. I saw other protocols as well, but never try them.
You can import offline tags.
Not sure if this is what you are looking for.
You can import offline tags.
Not sure if this is what you are looking for.
Maybe I didn't word my post correctly. Looking for PLC's(really the programming environment) that can export an OPC UA tag list, and HMI's(again, the programming environment) that can import and use that tag list. All of this must happen offline.
AlfredoQuintero
Lifetime Supporting Member
Some OPCUA servers have a configuration tool which gets directly from the PLC itself, through logix messaging, all the tags in the PLC program and builds the address space with the tags of the PLC configured as OPC UA nodes. I am familiar with Softing's dataFEED Suite and two other products, including an in-chassis ControlLogix module with such functionality. No need to import tags from the PLC program's engineering tool project.
Siemens S7-1500 PLCs can export to an OPC UA XML file:
How do you obtain the OPC UA variable nodes of the PLC tags of an S7-1500 OPC UA server to address them offline in an OPC UA client?
Dont know if Siemens HMI can import OPC UA XML files.
I tried to test by setting up an OPC UA connection and if there are any import options. Cannot seem to find any.
How do you obtain the OPC UA variable nodes of the PLC tags of an S7-1500 OPC UA server to address them offline in an OPC UA client?
Dont know if Siemens HMI can import OPC UA XML files.
I tried to test by setting up an OPC UA connection and if there are any import options. Cannot seem to find any.
Maple HMI can do that. It can import tags from different PLCs. My project was an odd Schneider PLC Using EcoSgtruxure ControlExpert. Maple HMI EBPro import the tags easily. I don't work for Maple System, I was amazed by it capability. Schneider licensing is so bad though.
I think EBPro is free, you can register and download it to try it out.
).Do you know this forum ?
https://forum.unified-automation.com/
You could try to ask there. And then post your findings here !
https://forum.unified-automation.com/
You could try to ask there. And then post your findings here !
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