ZLG USBCANFD Series, Руководство пользователя

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USBCANFD-100U-mini
USBCANFD Series CANFD Interface Card User Manual
©2021 Guangzhou ZLG Electronics Technology Corp.,Ltd.
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User Manual
Continued
Pin Signal Description Figure
7 CAN_H CAN bus is highly dominant
8 -- Reserved
9 -- Reserved
Figure 2.2 CAN interface
2.3 Signal Indicators
USBCANFD-100U-mini has a two-color SYS indicator and a two-color CAN channel indicator that indicate
the operating status of the CAN channel. Figure 2.1 shows the indicator locations, and Table 2.2 describes the
indicators.
Table 2.2 Description of USBCANFD-100U-mini interface card indicators
Indicator Status Indication status
SYS
Red The USB driver is not installed properly
Green The USB driver is installed
Green flashing The USB is communicating with the device
Flash in red USB and device communication error
CAN
Off The CAN channel is not open
Green The CAN channel is open
Green flashing The CAN channel is transmitting messages
Flash in red CAN channel bus error
2.4 System Connections
When USBCANFD-100U-mini is connected to the CAN-bus, you only need to connect CAN_L to CAN_L and
CAN_H to CAN_H signal. The CAN-bus network adopts a linear topology, and the two terminals of the bus need
to be installed with 120 ohm terminal resistors; if the number of nodes is greater than 2, the intermediate nodes
do not need to install 120 ohm terminal resistors. For branch connections, the length should not exceed 3 meters.
Figure 2.3 shows the connection of CAN-bus bus.