Rockwell Automation T8030S Trusted OPC Server Package - Manual (Page 28)

Trusted
TM
OPC T8030S
Issue 23 April 10 PD-T8030S 28
3. Operation
3.1. Communication with the Trusted TM Controller
When the OPC Server is configured and running, it will begin communicating with the defined
controller(s). At a minimum, the server will poll all of the defined communication ports to ensure that
they are available. If Sequence of Events or Process Historian updates have been enabled, the server
will begin communicating with the controller to receive those updates. Polled updates will only occur
once an OPC client has connected to the server and subscribed to individual tags.
The normal operation of the server is to attempt to communicate to a controller through the defined
primary port, while occasionally verifying the communication path through the secondary port if one is
defined. Errors in communicating through the primary port will cause the server to switch to the
secondary port if one is available.
3.2. Monitoring the OPC Server
3.2.1. Server Status
The status of the Server can be monitored from the OPC Server configuration tool by selecting the
Status tab. This tab shows the communications status of each of the controllers.
Figure 10 Server Status