GE RX3i - Connect OPC UA Client to OPC UA Server

Chapter 10. OPC UA Server
184 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual GFK-2224Q
Outputs
Parameter Description Data Type
ServerRunning True when OPC UA server is running and
ready for clients to connect and exchange
data.
Bool
ServerConfiguration True when OPC UA configuration files and
certificates have been created.
Bool
ServerStatus OPC UA Server Status:
0x01 – Server is ready to start
0x02 – Server is running
0x04 – Restart is pending
16-bit bitfield
(identical to SERVER_STATUS
word defined in OPC UA Server
– Service Request –
SERVER_STATUS, above)
ConfigStatus OPC UA Server Configuration Status:
0x01- Configuration is clear
0x02- Configuration files and certificate
data have been created.
16-bit bitfield
(identical to CONFIG_STATUS
word defined in OPC UA Server
– Service Request –
CONFIG_STATUS, above)
Connect OPC UA Client to OPC UA Server
Once the OPC UA server is running, a client can connect to the server and browse the address space. The OPC
UA server uses the OPC UA Binary protocol to communicate with the client. The OPC UA Binary connection
strings take the base form displayed below.
As an example, a connection string for the OPC UA server is constructed. To begin, the controller TCP/IP
address of the embedded Ethernet port is needed. One method to find this information is to use the Machine
Edition programmer. Open the controller’s project and select the project top level in the Project tab of the
Navigator window. From the Inspector window, scroll down to the IP Address Entry (see the screenshot
below). From the figure, we can see the current IP address is 10.10.1.102. For this example, the client’s
connection string for the controller is the following:
opc.tcp://10.10.1.102:4840