Motortech EasyNOx, Operating Manual

Page: 67 / 142

7 Wiring and Configuration
Rev. 06/2021 67
7.2.9 Node ID CAN Bus Module
For communication with the EasyNO
ₓ
via the CAN bus, the correct node ID be set on the CAN bus
module. Set the node ID of the CAN bus module via the DIP switches Modul-ID as follows:
CAN bus module 1 2 3 4 5 6 7 8
First NO
X
monitor ( NOx:1 ) 0 0 0 0 0 0 1 0
Second NO
X
monitor ( NOx:2 ) 1 0 0 0 0 0 1 0
7.2.10 Bit Rate CAN Bus Module
Set the bit rate of the CAN bus module to 250 kbit/s via the DIP switches Baud :
1 2 3 4
0 1 1 1
7.2.11 Device Setup EasyNO
ₓ
For each CAN bus/NO
X
sensor module you use, add a NO
X
monitor (display name NOx ) in the
Device Setup view of the EasyNO
ₓ
(see section Adding a Device on page 83). Set up your EasyNO
ₓ
system in such a way that the first NO
X
monitor ( NOx:1 ) monitors the first engine and the second
NO
X
monitor ( NOx:2 ) monitors the second engine.
7.3 CAN Bus Wiring CAN1
The CAN bus interface CAN1 of the EasyNO
ₓ
connects the EasyNO
ₓ
to a CANopen ® network. This
CANopen ® network is used to connect the EasyNO
ₓ
to an optional I/O communication module
and other devices supported by the EasyNO
ₓ
. The EasyNO
ₓ
functions as NMT master in the CAN-
open ® network.
The wiring of the CAN bus requires three conductors (CAN Hi, CAN Lo, and CAN Com). The con-
ductors for CAN Hi and CAN Lo must be twisted wires. At a bit rate of 250 kbit/s, the bus may on-
ly have a maximum wire length of 250 m (820') and must be terminated at both ends by a termi-
nating resistor of 120 Ω between the CAN Hi and CAN Lo conductors to prevent reflections. Use
shielded CAN cables only.