OPC UA Connection
The OPC UA Connection
lets you connect HELIO to PLCs that comply with the
established
OPC UA
standard.
Options
Name
Will be used by HELIO internally to differentiate between multiple connections.
URL
URL of your OPC UA endpoint. A valid URL should contain the protocol, hostname, as well as the port.
Test First
Before creating an actual connection to the URL, make sure to
validate that HELIO can connect to your PLC by clicking the Test
button. If your test was successful, click the Create Connection
button.
Authentication
The next step is to specify how you want to authenticate against your OPC UA
server. The capabilities of your server will determine this setting, so it is
important to check them first. An OPC UA server can support different types of
so-called User Identity Tokens
to implement authentication. Currently, HELIO
supports the following types:
Mode | User Token Type | HMI Users |
---|---|---|
|
| Using this setting indicates that your OPC UA Server does not require any credentials. This approach is suitable as long as both HELIO and the OPC UA server are running on the same host and you have implemented the necessary security measures to ensure that the OPC UA server is not accessible from other devices on your network. |
|
| Choose this mode if your server requires authentication using a
|
|
| Coming soon… |
Watch This Space – There's More to Come...
We're working hard on providing additional layers of security by supporting the third authentication option: authentication using a certificate and a private key.
Additional we're working on the ability to sign and encrypt the traffic by supporting Security Modes.
So stay tuned!
Auto Connecting
Once you establish a connection, HELIO will add it to the runtime permanently. The runtime will automatically connect to this connection during startup and will try to reconnect it if the connection is lost.