Figure 5.9 – Electrical wiring diagram
electrical connections of ON/OFF command switch
LEGEND
SCH Electronic board
R Common
W Terminal consensus warming
Components NOT SUPPLIED
CS ON/OFF command switch
5.5 CAN BUS CABLE CONNECTION
This paragraph describes how to connect one or more appliances to a controller through
the CAN BUS cable. In particular the following items are explained:
What is the CAN BUS cable.1.
How to connect the CAN BUS cable to the appliance's electronic board2.
CAN BUS serial connection is composed by a set of elements (appliances or controllers)
called nodes, connected through a 3-cores cable. Nodes can be quilified as terminal
nodes or as intermediate nodes.
Terminal nodes are appliances or controllers which are connected to one single •
other element.
Intermediate nodes are appliances or controllers which are connected to two other •
elements.
Schematics of Figure 5.10 Example of CAN BUS → 39 is an exemple of CAN BUS net: 3 ap-
pliances are connected each other and to one controller. Appliance D and the controller
A are terminal nodes, while appliances B and C are intermediate nodes.
Figure 5.10 – Example of CAN BUS
Terminal nodes and intermediate nodes
LEGEND
A Controller
B-C-D Appliance
1-4 Terminal nodes
2-3 Intermediate nodes
What is the CAN BUS cable
The cable to be used must be suitable for CAN BUS applications.
