Figure 7-1b System connection (many PCS)
The EMS can also be directly connected to the BMS and the PCS respectively. All
the BMS and PCS can be daisy-chained and star-connected. The EMS manages the
two systems together. EMS can transfer information to BMS and the PCS
respectively, and BMS and the PCS can also transfer information to each other. The
communication is a triangular structure. Diagram 7-1c shows the system architecture.