ERCfarcontrol
Member
What is the difference between the OPCWorx Proxy (which seems to be legacy), and the OPC UA Server? Both can be used to share data between redlion devices, but the OPC UA seems to be a current industry standard for directly sharing data amongst devices and scadas without any other software. The OPC UA nodes are discovered from the device over the network similar to a BACnet network, where as the OPCWorx tags come from selecting the crimson file of the device you want to communicate to. Why must you discover the nodes over the network?
I've been developing hmi's using 15" graphites at the machine level for quite some time and I am now developing a supervisory hmi using a 15" graphite. What direction would I want to go in for this? My end goal is to have an "off the shelf" product.
My concern is when using OPC UA is the client looking for the OPC nodes from an exact device with some kind of special identifier like a Mac address ALONG WITH it's specified ip address? Or is it just looking for the OPC nodes at it's specified ip address?
I guess what might answer my question is, can you replace a broken HMI with a new one of the same model with the same configuration preloaded, and be able to do it without needing a PC/crimson. Or would you need to use crimson to rediscover the nodes from the new "unique" HMI even though the configuration is the same?
Hope that makes sense. Maybe I'm overthinking this.
I've been developing hmi's using 15" graphites at the machine level for quite some time and I am now developing a supervisory hmi using a 15" graphite. What direction would I want to go in for this? My end goal is to have an "off the shelf" product.
My concern is when using OPC UA is the client looking for the OPC nodes from an exact device with some kind of special identifier like a Mac address ALONG WITH it's specified ip address? Or is it just looking for the OPC nodes at it's specified ip address?
I guess what might answer my question is, can you replace a broken HMI with a new one of the same model with the same configuration preloaded, and be able to do it without needing a PC/crimson. Or would you need to use crimson to rediscover the nodes from the new "unique" HMI even though the configuration is the same?
Hope that makes sense. Maybe I'm overthinking this.