No communon MPT002-G4P-V1 between MPT002-G4P-V1 MPT002-G4P-V1 and CP1H, MPT002-G4P-V1 and COMMUNICTION TIME showed that everything is normal, OVER CP1H serial link, MPT002-G4P-V1 indicator lights COM and CP1H flash link normal, MPT002 analog display screen display is normal, COMMUNICTION TIME OVER
What is the reason and how to solve it? Thank you very much!