Wiring Instructions
73/86
netTAP NT 50 | Gateway Devices
DOC091202UM09EN | Revision 9 | English | 2013-02 | Released | Public
© Hilscher, 2010-2013
10.4 CANopen
Please use only CAN certified cable with the following characteristics:
Parameter
Value
Impedance 120
Ω
± 12
Ω
Capacity
< 50 pF/m
Table 69: Characteristics of CAN certified Cable
Figure 13: Termination CANopen Network
The pin numbers inthe figure above refer to M12 connectors. If you use de-
vices in the network with other types of connectors, take care that the pin
numbers of those devices can be different from the figure above.
At the ends of the network there must be two resistors of 120
Ω
to termi-
nate the cable. It is allowed to use repeaters to increase the number of
nodes, which may be connected, or to increase the maximum cable length.
The CAN segment length in dependence of the Baud rate or corresponding
Loop Resistance and Wire Gauge is given in the following table:
Baud rate
in kBit/s s
Max. distance
Loop Resistance
Wire Gauge
10
1000
m <26
Ω
/km 0,75...0,80
mm
2
20
1000
m <26
Ω
/km 0,75...0,80
mm
2
50
1000
m <26
Ω
/km 0,75...0,80
mm
2
125 500
m <40
Ω
/km 0,50...0,60
mm
2
250 250
m <40
Ω
/km 0,50...0,60
mm
2
500 100
m <60
Ω
/km 0,34...0,60
mm
2
800 50
m <60
Ω
/km 0,34...0,60
mm
2
1.000
40
m
70
Ω
/km 0,25...0,34
mm
2
Table 70: CAN Segment Length in dependence of the Baud rate or corresponding Loop Re-
sistance and Wire Gauge
