Yokogawa Standalone MW100 - Manual (Page 104)

App-2
IM MW100-17E
Appendix 2 Modbus Protocol
Modbus Protocol Specifications
The following are the Modbus specifications of the MW100.
Specifications Description
Communication media Ethernet, RS-232, or RS-422A/485
Control method Ethernet
RS-232: None only
RS-422A/485: None only
Baud rate Select 1200, 2400, 4800, 9600, 19200, 38400, 57600, or 115200
bps
Start bit 1 bit, fixed
Data length Select either 7 or 8 bits
Parity Select Odd, Even, or None
Stop bit Select either 1 or 2 bits
Data interval 24 bit time or less
Error detection CRC-16
Transmission mode RTU (remote terminal unit) mode only
Slave address 1~247