Inovance MD300 - Page 201

Appendix MD320/MD320N User Manual
200
FD-05
Communication protocol
selection
Factory default value 0
Setup range
0 Non-standard MODBUS protocol
1 Standard MODBUS protocol
When the function set to 0.0 s, the communication timeout parameter is inactive.
When the function code set to RMS, if the interval time between the communication and
the next communication is beyond the communication timeout, the system will report
communication failure error (Err16).At normal circumstances, it will be set as inactive. If
in the continuous communication system, set the second parameter, you can monitor the
communication status.
FD-05=1
:
Select satandard MODBUS protocol
FD-05=0
:
When reading the command, the slave return is one byte than the standard MODBUS
protocol’s, for details refer to communications Data Structure of this protocol.