CANopen gateway
Wieland Electric GmbH | BA000970 | 07/2019 [9855]
126
Illustration 36: Open-style plug on the SP-CANopen module
Table 85: Reference: Allocation of open-style plug on the SP-CANopen module
Pin
Description
5
–
–
4
H CAN_H
CAN High
3
DR (CAN_SHLD)
Shielding connection (optional)
2
L CAN_L
CAN Low
1
–
–
Bus cable
CANopen is based on a linear topology with shielded, two-lead twisted-pair cables and terminal re-
sistances at both bus ends. The shielding is connected to ground at both ends. The transmission ra-
te depends on the network length and ranges from 125 kbit/s to 1000 kbit/s. The potential network
lengths range from 20 m at 1000 kbit/s to 500 m at 125 kbit/s.
Illustration 37: CANopen bus cable
NOTICE
It is not necessary to connect a power supply (Pin 1/5) to the SP-CANopen module.
The following maximum physical values are possible:
Table 86: Maximum line lengths on the SP-CANopen module
Bit rate (kbit/s)
Maximum cable length (m)
125
500
250
250
500
100
800
40
1000
20
