Festo CPX-CEC, Electronic Manual

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2. Installation
2−12
Festo P.BE−CPX−CEC−EN en 1004a
2.6 Communication interfaces
2.6.1 CANopen interface (CPX−CEC−C1/−M1)
On the CPX−CEC−C1/−M1, there is a CANopen interface for
connection of CAN bus slaves.
The CANopen interface is designed as a 9−pin Sub−D plug.
Plug Pin Signal Internal
contacts Explanation
5
1
9
6
1
2
3
4
5
6
7
8
9
Housing
(plug) n.c.
CAN_L
CAN_GND
n.c.
CAN_SHLD
CAN_GND
CAN_H
n.c.
n.c.
FE
not connected
CAN low
CAN ground
not connected
Connection to functional earth (FE)
2)
CAN ground (optional)
1)
CAN high
not connected
not connected
The plug housing must be connected
to FE
2)
.
1)
If a motor controller with external voltage supply is connected,
CAN ground (optional), pin 6 cannot be used on the CPX−CEC−C1/−M1.
2)
FE: Functional earthing
Tab.2/5: Pin assignment for the CANopen interface
The connected CAN bus slaves are not supplied with power
over the CANopen interface.