User`s guide

Section ELECTRICAL INSTALLER
Ed. 04/2012 61
The intermediate nodes are ACF or DDC that are connected to two other elements.
This concept is illustrated in the following diagram.
Figure 25 – Examples of CAN BUS networks with: a) 2 nodes = 1 ACF + 1 DDC b) 3 nodes = 2 ACF + 1 DDC
The diagram shows 2 setup types in a CAN BUS network:
a) 1 ACF60-00 is connected to one DDC. The two elements, ACF and DDC, are terminal
nodes of the network because they both are only connected to one other element.
b) 2 ACF60-00’s are both connected to one DDC. The ACF “B” and the DDC are terminal
nodes, while the ACF “A” is an intermediate node because it is connected to 2
elements, which are the ACF “B” and the DDC.
The DDC can be located anywhere in the CAN BUS network: AFC and DDC can
be either terminal and intermediate nodes.
One DDC can control and monitor up to 16 ACF’s. If there are more than 16 ACF’s
in the network, additional DDC’s must be connected, up to a maximum of 3.
CAN BUS cable
The CAN-BUS cable must correspond to the Honeywell SDS standard.
The table below mentions a few types of CAN BUS cable, combined together based on
the maximum distance covered for each individual type.
TYPE and MODEL
CABLE
COLOR and SIGNAL
COVERAGE MAX. DISTANCE
m
ROBUR NETBUS
BLACK = H WHITE = L BROWN = GND 450
Honeywell SDS 1620
BELDEN 3086A
TURCK type 530
BLACK = H WHITE = L BROWN = GND 450
DeviceNet Mid Cable
TURCK type 5711 BLUE = H WHITE = L BLACK = GND 450
Honeywell SDS 2022
TURCK type 531 BLACK = H WHITE = L BROWN = GND 200
Table 24 – Cable types and models for the wiring of a CAN BUS network
®
1
CAN-BUS CABLE
(NOT SUPPLIED)
SEE Table 24,
PAG. 61.
2
DDC
A
®
1
1st SEGMENT CAN-
BUS CABLE
(NOT SUPPLIED)
SEE Table 24, PAG. 61.
2
DDC
A
2nd SEGMENT CAN-
BUS CABLE
(NOT SUPPLIED)
SEE Table 24,
PAG. 61.
®
3
B
a) b)