资料介绍:
echnical Characteristic
Item Specifications
Physical interface RS-485 2wires half duplex
Protocol ModBus RTU mode
Transmission wiring type Multi-point bus (either directly on the trunk cable, forming a daisy-chain)
Baud rate 2400, 4800, 9600, 19200, 38400bps (Default is 19200bps)
Data bit 8
Stop bit 1 or 2 (Default is 1)
Parity ODD,EVEN or NONE (Default is EVEN)
Slave address 1 ~255(FFh) (Default is 1)
Response time 1s or less
Distance 1000m
Max. number 31
Terminate 120 Ω 1/2W
Recommended cable Shielded twis