Connections
9 (22)
6
Connections
6.1
Overview
Fig. 2
Connections
1
CAN 1
2
CAN 2 (exclusively in standard version)
3
Fieldbus expansion connector channel 2 (option)
4
Fieldbus expansion connector channel 1 (option)
5
PCI/PCIe connector
6
Expansion board connector (option)
7
Synchronisation connector (option)
6.2
CAN Bus
The bus coupling can optionally be galvanically isolated. With galvanic isolation the shield of
the CAN connector is connected to CAN ground through a 1 MΩ resistor and a 10 nF capacitor.
The shields of the CAN connectors are connected directly together.
For a not galvanically isolated interface, the CAN ground and PC ground are at the same
potential.
For best noise immunity use shielded CAN cables.
Pin allocation of Sub-D9 Connector
Pin no.
Signal
Option
1
CAN-Low (Low-speed)
Via fieldbus expansion
2
CAN-Low (High-speed)
3
GND
4
CAN-High (Low-speed)
Via fieldbus expansion
5
-
6
-
7
CAN-High (High-speed)
8
LIN
Via fieldbus expansion
9
VBAT
LIN
(8–18 V DC)
Via fieldbus expansion
PC CAN Interface User Manual
4.01.0230.20000 3.0
