ENGLISH 4/8
MI001515-E
NOTE:
For the best performances, the use of special shielded cables is recommended (BELDEN
9841 cable for example). Terminate the two ends of CANbus network by setting to ON the DIP-
switches, present on the DIN rail connection supports, where the two modules ends are inserted.
Scheme 1
Baud rate
Bus
Lenght
Drop
Lenght
20 kbps
2500 m
150 m
50 kbps
1000 m
60 m
125 kbps
500 m
5 m
250 kbps
250 m
5 m
500 kbps
100 m
5 m
800 kbps
50 m
3 m
1000 kbps
25 m
0.3 m
CAN BUS
RULES
CONNECTIONS
1) Install the modules on the DIN rail (max 120).
2) Connect the remote modules using cables of proper length.
The following table shows the datas about the cables length:
-Bus Length: CAN network maximum length as a function of the Baud rate.
Lenght of the cables which connect the two bus terminators modules.
-Drop Length: maximum length of a drop line as a function of the Baud Rate.
(Please see Scheme 1)
Z-PC-DINAL1-35 Accessory
When Z-PC-DINAL1-35 accessory is
u s e d , t h e p o w e r s u p p l y a n d
communication signals may be
provided by the terminals block into
t h e D I N r a i l s u p p o r t .
The figure shows the meaning of the
terminal blocks and the position of
the DIP-switch for CAN (not for
MO D BUS) network termination.
GNDSHLD: Shield to protect the
signals inside the connection cables
against interference (recommended).
Ω
In the figure you can see the meaning
of the IDC10 connector pins if you
want to provide signals through them.
Rear Connector (IDC10)
GNDCAN / GNDMODBUS Power Supply AC +
CANH / A
CANL / B
Power Supply AC-
IDC 10
1
E
C
AL
LE TRIC
CONNECTIONS
Power Supply and CAN / MODBUS Interface
Power Supply and CAN/MODBUS interface are available by using the bus for the
Seneca DIN rail, by the rear IDC10 connector or by Z-PC-DINAL1-35 accessory.
