ABB COM600 Station Automation Series User Manual page 13

1MRS756125 COM600 Station Automation Series
COM600 3.2
User's Guide
Figure 2.3.1-1 Conceptual view of COM610 Gateway
1. Network Control Center (NCC)
2. Engineering PC with Communication Engineering Tool (CET)
3. COM610/615 with embedded operation system, OPC client(s) for NCC connection(s),
OPC server(s) for process connection
4. Protection and control devices
Normally, there is one OPC client per NCC connection. If you want to create several
NCC connections with the same protocol, you have to use multiple instances.
COM610/615 consists of OPC Data Access (DA) server and client components. OPC
Servers are used mainly for master/client protocol stacks to provide access to the data
in the devices connected with the protocol. OPC Clients are used for slave/server protocol
stacks to enable external systems to access data available in the OPC Servers.
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