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Showing results for tags 'opc ua'.
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I'm working with OPC/UA right now and just to clarify a few things: 1) The existing help file [September, 2019] mention of the certificate in the PLC [UniApps->Network-> (2nd Page)-> OPCUA] may or may not be present in there. It depends on the OPC/UA Client program. 2) The generation of the OPC/UA certificate appears to be created/generated when the PLC is first powered up. In order to get the OPC/UA Client to connect I had to download the program and then reset/reboot the PLC. 3) If you plan to implement OPC/UA do yourself a favor and wrap all of your tags into one or more Structs. You can add Structs to the OPC/UA Address Space. Otherwise you have to add the tags one at a time. For my existing project that means adding 168 tags by hand. And of course I find it necessary to have the OPC tag name match that of the 'source' tag exactly. That means at least 600 actions to add them. [I batch process similar to that of the MODBUS configuration would come in handy. Hint Hint !!!]. If anyone has any additional tips/tricks/faqs please add them.
Hi Dears, I can identify a lot of benefits including OPC UA server capabilities directly at CPU level. This could standardize OPC communications for OEM vendors and leveraging data collections in upper data layers. Do you have plans to integrate that functionality ? Congratulations including MQTT protocol, this is also a very good progress!!! I tried in the pass define an standard XML (web methods module) to communicate, but this is definitely much better. Regards. Marcos.
Dear All, Does someone knows which protocol is implemented in the UniOPC package: UA (Unified Architecture) or DA (Data Access)? For one of our test installations we need to connect a V1040 PLC via OPC UA to a fuzzy logic controller that generates variable setpoints we need for our process. Thanks a lot. Olaf