Can-Bus Interface - ZLG CANDTU-200UWGR User Manual

CANDTU-200UWGR
CAN Bus Message Recording and Wireless Data Transmission Equipment User Manual
By using the configuration tool, the switch input interface can be configured as timing
recording mode and analog key-pressing mode.
1) The timing recording mode is used to regularly collect the switching status of external
equipment, such as valve closing and opening, motor start and stop, and contact
connection and disconnection. Figure 3.3 shows the connection diagram.
2) Simulate button mode can be used to simulate on-board buttons, including message
marking, pause recording, resume recording, and user upgrades.
3.3.4

CAN-bus Interface

The device provides two isolated CAN-Bus interfaces. The physical form of the
interface is a DB9 terminal. Table 3.11, Table 3.12, and Table 3.13 list the interface
schematic diagram, signal definition, and interface specification.
Type
DB9, pin
Function
interface
CAN
Table 3.11 CAN Interface
Schematic Diagram
Table 3.12 Flange terminal signal definition
Signal
definition
CAN data transceiving
CAN_L
differential inverted signal
CAN_GND CAN isolated ground
CAN data sending and
CAN_H receiving differential positive
phase signal
CAN_SHIELD CAN shield ground
©2021 Guangzhou ZLG Microelectronics Technology Corp.,Ltd.
11
Pin description
2：CAN0_L
3：CAN0_GND
5：CAN0_SHIELD
6：CAN0_GND
7：CAN0_H
2：CAN1_L
3：CAN1_GND
5：CAN1_SHIELD
6：CAN1_GND
7：CAN1_H
Signal description
User Manual