Clipsal 5502DAL Podręcznik Użytkownika Pobierz pdf (Strona 16)

Bus OPC installation

User Guide

1.8.1 How the OPC Data Access interface works

A simple example of a C-Bus OPC Server implementation is to send

lighting information to and receive lighting control messages from the

OPC Client. Within the C-Bus, there is one network which contains a

Lighting application which controls four dimmer output units, each being

named FLR1_DIM1, FLR1_DIM2, FLR1_DIM3, and FLR1_DIM4.

In the graphic below, the C-Bus network consists of a dimmer and a 4 key

input unit. The C-Bus network is connected to the Ethernet via a CNI unit.

Figure 6: C-Bus connecting to a TCP/IP network

Ethernet (TCP/IP)

OPC Server

OPC Client

Dimmer

CNI

C-Bus network

4 key input

unit

C-Bus C-Gate Server

Transmitting Lighting Compatible lighting data to the OPC Client

The sequence diagram below illustrates the messaging sequencing

between a C-Bus network, a C-Gate server, a C-Bus OPC Server, and the

OPC Client for sending a lighting message originating from a 4 key input

unit.

Figure 7: OPC Lighting message sequence

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 34 35

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Clipsal 5502DAL Podręcznik Użytkownika Strona 16