OPC UA Server Settings
Changes made to any of the following OPC UA Server settings requires a restart (of either the gateway or the OPC UA module) before they changes will take effect.
The table below represents settings on Ignition's OPC UA server. They'll only become available if the OPC UA Module is installed on the gateway.
The port the UA server will bind to.
|Bind Addresses||The address the server will bind to. If you want to expose the OPC UA server to external sources, you need to use 0.0.0.0 or the IP address of the computer.|
A comma separated list of endpoint addresses that the UA server can be reached at. It is important that this is set to addresses that can be reached by any UA clients attempting to connect to the server.
When entering addresses into this property, they can be just an IP address or hostname:
Alternatively, angled brackets can be used. When applied to an address, the server attempts to find the hostname, or resolve the value to as many addresses or hostnames as it can find.
A comma separated list of acceptable security policies. Available policies are:
In addition, the following deprecated policies are available, but not recommended:
|Anonymous Access Allowed||Specifies if UA clients are allowed to connect to this server anonymously. While false, client connections are required to authenticate with the server.|
|User Source||Which user source contains the initial user for authenticated access. Credentials for the initial user can be found above.|
Attempts to use the 'opcua-module' user sources
|Expose Tag Providers||When enabled, Ignition Tag Providers will be exposed through the UA server, allowing third-party UA clients to access tags in the provider.|
|Backup Bind Addresses|
The local addresses that the UA server will attempt to bind to while the backup server in a redundant pair.
|Backup Endpoint Addresses|
The endpoint addresses that the UA server can be reached at while the server is configured as the backup in a redundant pair. The notation on this property is similar to the Endpoint Addresses property above, in that angled brackets can be used with each hostname and IP address.
|Read-only When Inactive Node|
When enabled, this server switches to a read-only state while its gateway is the inactive node in a redundant pair.