Modbus Registers OPTIMA...GOMOD
Short instruction 227VM-024-05-MB 
Written by: Michael Köhle    Date: 13.11.2014 08:56:00  Side 6 of 13
2. Modbus protocol and registers 
2.1.1.  Protocol 
Transmission protocol 
Protocol:  Modbus / RTU 
Baud rate:  1200, 2400, 4800, 9600, 19200, 38400 
Byte sequence:  MSB / LSB 
Byte format:  8 data bits, 2 stop bits, none parity 
8 data bits, 1 stop bits, none parity 
8 data bits, 1 stop bits, even parity 
8 data bits, 1 stop bits, odd parity 
Address range:  1 to 247 
Max. Data bytes  N*1 
Resistance:  120 Ohm (Software) 
Note: Factory settings are indicated bright. 
Modbus parameter settings 
Baud rate:  19200 
Delay:  0 
Byte format:  8 data bits, 1 stop bits, even parity 
Address range:  1 










