Dear all, I have a question about possible models of hardware elements, such as CAEN PS for instance. I have connected a CAEN PS using the OPC UA facility. When I check the tags automatically created by the designer once the communication has been properly established, I see a sort of “raw” tags/information coming from the PS. But I do not see any type of modeling. Which basically means there is not a library (or at least I do not find it) that can provide the information coming from and going to this specific supplier in a more coherent way. This library should be able to include the different hardware models, create instances of the devices with appropriate addressing and even setting in default specific tags separated in groups, normally 3 groups:
– Actual tags --> Values coming from the crates
– Settings tags --> command which are sent from the panels or from the operators to the crate
– Readback settings tags --> this should be a feedbackthat confirms the commands I pass have reached the server.
While the actual and the readbacksettings are associated to the OPC UA server, the settings group the user commands.
This is a possible modeling, not neccesary the only one, but the issue is that I do not see any modelling of tags at all and this makes that the read out/read in of values, alarms… is not so appropriate. Unless of course I am missing specific hardware modelization based on predefined hardware, but just as I see the default tags, it is quite difficult to split what it comes from the Ps, what I send and if this has been properly received by the server or not. Is there any modelling infrastructure able to establish a tags structure depending on the hardware model?
Thanks so much in advance,