Product specifications

Integrating OPC Servers into 800xA
458 3BDS011222-510 B
2. Edit the Limits for Access and Launch
a. Access Permissions – Edit Limits...
You need to check the Remote Access box for the user labeled
ANONYMOUS LOGIN in this dialog.
Figure 280. COM Security Tab
This setting is necessary for OPCEnum.exe to function and for some OPC
Servers and Clients that set their DCOM 'Authentication Level' to 'None' in order
to allow anonymous connections. If you do not use OPCEnum you may not need
to enable remote access for anonymous users.