Hitachi L200 Series

Connecting the Inverter to ModBus
Appendix B
B–4
OPE / 485 DIP Switch -
SR
SK
OPE
485
PRG
TM
The difference between OPE-S and OPE-Smini is the short-circuit inside the connector.
If you set 485-side OPE-S,SRW says "----"(communication error)
But OPE-Smini works properly.