Siemens SIMATIC PN/CAN LINK

Connecting
8.6 Connecting the CAN bus
SIMATIC PN/CAN LINK
94 Operating Instructions, 03/2022, A5E39895388-AC
8.6 Connecting the CAN bus
CAN connection
The PN/CAN LINK is connected to the CAN bus by
means of a CAN cable with D-sub connector (9-pin,
socket) ①. Use a shielded CAN cable conforming to
CiA specifications with shielded connector for the
connection.
CAN connection pin
assignment
1
--
Terminating resistor 120 Ω (install jumper from
pin 1 to pin 2 for use)
2
CAN_L
CAN_L bus cable (dominant low)
3
CAN_GND
CAN Ground
4
--
Not connected
5
CAN_SHLD
CAN shield
6
CAN_GND
CAN Ground
7
CAN_H
CAN_H bus cable (dominant high)
8
--
Not connected
9
--
Not connected
NOTICE
The connection CAN Ground to ground is necessary to ensure EMC stability.
The common return (CAN_GND) may only be connected in one place to the ground
potential in the CAN network.
NOTICE
EMC stability is only guaranteed with shielded CAN cables.