Serial communication
mode
RTU mode and ASCII mode are optional.
Serial terminal
resistance
120 Ω external resistance
Supported Baud rate
1200~115200 bps
Supported validation
mode
No check, odd check, even check
Number of slave
stations supported
Maximum 62 (without repeater)
Mapping mode
protocol function
code
0x01
、
0x02
、
0x03
、
0x04
、
0x05
、
0x06
、
0x0F
、
0x10
Modbus data storage
area
0xxxx area (coil): 8192 Bit
1xxxx area (discrete input): 8192 Bit
3xxxx area (input register): 2048 Word
4xxxx area (holding register): 2048 Word
3xxxx area (system diagnosis area): 263 Word
2. Hardware description
2.1 Product appearance