Rockwell Automation T8030S Trusted OPC Server Package - Manual (Page 27)

Trusted
TM
OPC T8030S
Issue 23 April 10 PD-T8030S 27
2.8. Configuring the PC
2.8.1. Real-time Clock
The date and time settings for the Trusted
TM
controller should be synchronised with date and time of
the PC hosting the OPC Server application. The PC’s time zone should be set to the local time zone.
2.9. Configuring the OPC Client
2.9.1. Connecting to the server
Connecting to the server is implemented differently for each OPC client. For those OPC clients that
allow browsing of the available OPC servers, the OPC Server is identified as ICSTriplex.Trusted.1 for
OPC Data Access clients and ICSTriplex.Event.1 for OPC Alarm & Event clients. Refer to the specific
OPC client documentation for further details.
The comment/description field from the Toolset application is delivered to the OPC client for each
point. This field appears in the OPC ‘Attributes’ fields and is usually accessible in the client in the Point
Properties data.
2.9.2. Point Quality Initialisation
The point quality status data is initialised differently according to the method of data access.
If a point is configured for polled update, i.e. with a Modbus address only, on initialisation of the OPC
data the quality will be displayed as ‘Good’. Subsequent changes will be time-stamped from the PC
running the OPC server.
If a point is configured for event update (SOE only), on initialisation of the OPC data the quality will be
displayed as ‘Bad’ until a point event (due to a change of state) occurs. Events will be time-stamped
with the event timestamp.
If a point is configured with a Modbus address and also has an SOE attribute, on initialisation of the
OPC data the quality will be displayed as ‘Good’. Subsequent changes will be time-stamped from the
PC running the OPC server.