2020.1.60.3 OPC UA

1 Overview
2 Where to find
3 Feature overview
4 Fidelity:
5 Opc ua variable naming
- 5.1 Example NodeId:
- 5.2 Another example NodeId (Tia Portal):

Overview

As with all adapters, an existing https://unit040.atlassian.net/wiki/pages/createpage.action?spaceKey=PUD&title=Logic%20Simulator&linkCreation=true&fromPageId=1212979579 is required.

Where to find the different Gateway Adapters

Where to find

To find the OPC UA adapter, go to the Inspector window of a https://unit040.atlassian.net/wiki/spaces/PUD/pages/995690099/WIP%2BLogic%2BSimulator#Overview component.
This https://unit040.atlassian.net/wiki/spaces/PUD/pages/995690099/WIP%2BLogic%2BSimulator#Overview can be added under Logic.

Feature overview

Only the settings between the lines refer to the OPC UA Adapter.

Please check the documentation for the rest of the https://unit040.atlassian.net/wiki/spaces/PUD/pages/995690099/WIP%2BLogic%2BSimulator#Overview

Gateway settings

Gateway settings
Adapter Target	Select a different adapter, please see prespective documentation for more information
Adapter Setting (OPCUAServerSettings)
XmlFilePath	File path to the policy file Warning : <Make sure to fill in a relative path to the Asset folder of the project and include .xml file extension>
endPointURL	The endpoint of the server
configurationFilePath	Configuration path for the configuration XML (default is sample case, please use your own)
namespaceIndex	the namespace index for opc ua
IdentifierTypeOpc	The identifier type for this configuration For more information: http://documentation.unified-automation.com/uasdkhp/1.0.0/html/_l2_ua_node_ids.html
UserName	Is passed to the server for authentication if the field is not empty (not used by default)
PassWord	Is passed to the server for authentication when the UserName field is not empty (not used by default)

Fidelity:

In order to get opc variables in real-time the fidelity of the signal definition has to be set to 0.

To use a subscription set the fidelity to the number of seconds for the interval.

Default fidelity is -1 this is counted as 1.

Right now we do not offer support for certificate accepting within Unity. A quick workaround is to connect to the server via Ua Expert and accept the certificate there. Then it should also work in prespective.

https://www.unified-automation.com/products/development-tools/uaexpert.html

Opc ua variable naming

For the naming of opc ua variables we have to create the NodeId.

https://documentation.unified-automation.com/uasdkhp/1.0.0/html/_l2_ua_node_ids.html

Example NodeId:

ns=4;i=1241

for this example, you have to configure your PreLogic Simulator as follows:

And your PrelogicComponent:

(Example Script)

public class OPCTestComponent : PreLogicComponent
{
 
    
    public override List<SignalDefinition> SignalDefinitions =>
        new List<SignalDefinition>
        {
            new SignalDefinition("1241", PLCSignalDirection.INPUT, SupportedSignalType.BOOL),
        };
}

Another example NodeId (Tia Portal):

ns=3;s="OPC_UA_DB"."TestBOOLINPUT0"

for this example, you have to configure your PreLogic Simulator as follows:

And your Prelogic component:

(Example Script)

public class OPCTestComponent : PreLogicComponent
{
    public override List<SignalDefinition> SignalDefinitions =>
        new List<SignalDefinition>
        {
            new SignalDefinition("TestBOOLINPUT0", PLCSignalDirection.INPUT, SupportedSignalType.BOOL),
        };
}