4
Electrical installation
36
Festo – GDCP-CMMD-AS-HW-EN – 1404NH – English
4.6
CAN [X4]
Connection
Version
[X4] on the motor controller
Sub-D plug connector, 9-pin, pins
Counterplug
Sub-D plug connector, 9-pin, sockets
Tab. 4.14 CAN connection
[X4]
Pin
Value
Description
5
1
2
3
4
6
7
8
9
1
–
–
–
2
CANL
5 V, Ri = 60 Ω
CAN low, signal line
3
GND
–
CAN GND, not galvanically isolated
4
–
–
–
5
Screen-
ing
–
Connection for the cable screening
6
GND
–
CAN GND, not galvanically isolated
7
CANH
5 V, Ri = 60 Ω
CAN high signal line
8
–
–
–
9
–
–
–
Tab. 4.15 Pin allocation: CAN [X4]
4.7
Serial interface RS232/RS485 [X5]
Connection
Version
[X5] on the motor controller
Sub-D plug connector, 9-pin, pins
Counterplug
Sub-D plug connector, 9-pin, sockets
Tab. 4.16 Connection: RS232/RS485 [X5]
The CMMD-AS has a serial interface for both axes. If the CMMD-AS is to be controlled via the serial
interface, the node number of the first axis must be set using DIL switch S1. The second axis automatic-
ally gets the address of the first axis +1.
Please note
Transmission fault during simultaneous access.
When RS 485 communication is activated, RS232 and RS485 interfaces on the motor
controller can accessed at the same time.
To prevent transmission faults caused by signal overlap:
•
When communicating via the serial interface only use separate lines that are con-
figured according to the specified pin allocation for RS485
or
RS232.
