10pcs 6-24V 8CH Channel RS485 Module Modbus RTU Protocol AT Command Multi-function Relay PLC Control Board
Operating voltage: DC 6-24V (12V version)
Working current: 10-15MA
AT command and MODBUS command two command control modes
The maximum delay is 9999 seconds under the AT command, and the maximum delay is 255 seconds under the MODBUS command.
The AT command can be input by the serial port super terminal (serial port assistant); in addition to the serial port super terminal input, the MODBUS command can also be input with "Modbus Poll".
Up to 247 devices can be used in parallel in MODBUS command mode
With RS485 and RS232 (TTL) dual bus interface
8 output control pins, 12V TTL level, low level (default) / high level output
Weight: 10 grams
10 x 8CH Channel RS485 Module
Wiring, the relay module and downloader does not includes!