A
communications interface solution for OPC
Description: This OPC Server provides OPC access to FieldServers.
The method of data transfer is called Data Array Access (DAA). Data Arrays
are the
internal data storage areas that reside within the FieldServers and are
type specific. The source of the information in the Data Arrays can be
any one of the standard FieldServer Drivers. It is incumbent on the user
to configure the ports & the Map Descriptors on the FieldServer. The
Map Descriptors are FieldServer objects containing polling instructions
for a driver to copy data from the low level devices into a Data Array.
One of the many advantages of this architecture is that it allows many
disparate proprietary devices PLC/DCS’s etc. to share common data
in a reliable embedded device (FieldServer) while providing access to the
SCADA / PC application level via this OPC Server. Please refer to the FieldServer
Documentation for instructions on configuration of the FieldServer.
Formal Driver Type: Ethernet
Connection type:
- 10BaseT Ethernet
- RJ 45 Connector
Connection Notes:
Please read the FieldServer documentation, regarding the networking requirements
of the FieldServer. From the PC side the TCP/IP networking needs to be
correctly configured so that UDP packets can be sent / received from all
FieldServers.
