Operating instructions

MICRO PANEL XV-102 3.5" 5. Installation
M002869-02, 07/2009 29
5.3.7 CAN
The CAN interface is not electrically isolated.
Tab. 10 Pin assignment of CAN interface in accordance with CiA
Wiring #
##
# Shielded cables must be used.
Tab. 11 Cable specifications
Fig. 11 CAN interface (9-pin, D-Sub, male, UNC)
Pin Signal Assignment
1- nc
2 CAN-L Bus line (dominant low)
3 CAN-GND CAN Ground
4- nc
5- nc
6 GND Optional CAN Ground
7 CAN-H Bus line (dominant high)
8- nc
9- nc
!
#
##
# Pin 3 (CAN-GND) and 6 (GND) are connected internally in the device.
#
##
# nc: Pins 1, 4, 5, 8 and 9 must not be connected!
#
##
# The CAN bus drivers are fed internally with power.
#
##
# No power supply for third-party devices is implemented on the CAN connector.
1
23
45
6
7
89
Cable specifications
Rated surge impedance 120 Ω
Permissible surge impedance 108…132 Ω
Capacitance per unit length < 60 pF/m
Core cross-section / max. cable length ≥ 0.25 mm
2
/ 100 m
≥ 0.34 mm
2
/ 250 m
≥ 0.75 mm
2
/ 500 m