While setting up new PAC Project I’ve gotten to the point where I need to setup our optoopcserver.
I follow the instructions and do everything required to have a functioning opc server which serves data to our pac displays. When I go and check DCOM checker after setting everything up it states that “This user: not found” under [access permission/default permissions]. I figured that this user would be the account I setup to run the opcserver and also the account which I was signed into at that moment so I added the user name “operator” to default permissions. I go to refresh the values on dcom checker and it still says that “this user: not found” but adds “operator” as it’s own line for perms. To me it seems that dcom checker doesn’t recognize operator as “This user”. I’m kind of stumped with this issue and also believe it’s the root cause of some opc crashes we’ve been having due to improper perms.
are you using an administrator privileged account to make the dcom changes?
I ran into problems too. “Operator” as an account needs to be on all systems that will access the opc server (the display computers) and the opc server itself. I ran through the dcom permission settings at least 2 times until it was right.
I was logged into the operator account (which has admin privileges) while changing dcom settings. I also did this at my home computer as a test and I ran into the same issue. Do I need to be logged into a different account than the one I’m designating to run the optoopcserver while doing the setup?
This is a picture of my current issue. It’s like This computer doesn’t recognize operator as this user. The launch permissions are fine and recognize operator as this user and the only difference is those security settings are setup directly through the opto22.opcserver.2 properties and access permissions are setup through the My Computer com security tab.
When I did the setup on 5 stations and 4 OPC servers, I was logged in on the first administrator account while I set permissions. I dont know if it is required. Windows is, well its windows. Worth a try.
