Bk5151, Fc51Xx, Cx With Can Interface And El6751: D-Sub, 9 Pin; Fig. 23 Bk5151, El6751 Pin Assignment; Fig. 24 Fc51X2 - Beckhoff EL6751 Documentation

3.9.8 BK5151, FC51xx, CX with CAN interface and EL6751: D-sub,
9 pin
The CANbus cable is connected to the FC51x1, FC51x2 CANopen cards and in the case of the EL6751
CANopen master/slave terminal via 9-pin Sub-D sockets with the following pin assignment.
Pin
2
3
6
7
The unlisted pins are not connected.
The mounting rail contact spring and the plug shield are connected together.
Note: an auxiliary voltage of up to 30 V
the transceiver.
Fig. 23: BK5151, EL6751 pin assignment
FC51x2:
Fig. 24: FC51x2
EL6751
Assignment
CAN low (CAN-)
CAN ground (internally connected to pin 6)
CAN ground (internally connected to pin 3)
CAN high (CAN+)
may be connected to pin 9. Some CAN devices use this to supply
DC
Version: 3.5
Mounting and wiring
31