Description of serial port/CAN port
COM/CAN interface adopts 2*4P spring terminal, and RS232/RS485/RS422 can be selected.
The pins of SX51 is defined as shown in the figure below:
Pin | RS232/CAN | RS422/CAN | RS485/CAN |
1 | DCD | TX- | DATA- |
2 | COM_GND | COM_GND | COM_GND |
3 | RXD | TX+ | DATA+ |
4 | CAN_1_H | CAN_1_H | CAN_1_H |
5 | TXD | RX+ | - |
6 | CAN_1_L | CAN_1_L | CAN_1_L |
7 | DTR | RX- | - |
8 | CAN_GND | CAN_GND | CAN_GND |