Siemens SIDOOR AT40 System Manual page 142

Controllers
6.6 Connecting terminals and interfaces
Connection
Risk of injury due to electrical voltages
The protective cover has to be removed to connect the CAN cable or to activate/deactivate
the terminating resistor.
Perform the following protective measures before removing the protective cover:
• Disconnect the controller from all live cables.
• By grounding, ensure that the user/fitter, the controller and other conductors have the
Table 6- 24
Pin assignment
Table 6- 25
Pin assignment
The bus can be terminated with 120 ohms via the switch S1.
You will find information about manufacturer-specific CANopen objects at Industry Online
Support on the Internet
(http://support.automation.siemens.com/WW/view/en/50247080/133300).
142
DANGER
same voltage potential.
Observe the general ESD guidelines.
Connector X15
Pin
1
2
3
4
5
6
7
8
Connector X16
Pin
1
2
3
Signal
CAN_H
CAN_L
GND
–
–
Shield
GND
–
Signal Description
CAN_H CAN high bus cable
Shield CAN cable shield
CAN_L CAN low bus cable
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN