Led Display - Samsung DVM PLUS III Technical Data Book

05-4~6_control systems(142~171
Control Systems
4 Power distribution system
4
4-1. SiM (WHM interface module) (MIM-B12)
4) RS485 connection with DMS and watt-hour meters
• All channels for connection with watt-hour meters support non-polarity RS485 communication.
Also they support automatic watt-hour meter detection for 5 designated meters.
But interface with DMS has polarity for C1 and C2 terminals, which requires extra attention when making connection.

5) LED display

N N o o t t e e
N N o o t t e e
2-times short consecutive LED blinking indicates SiM request and WHM response respectively,
which means normal communication state. Communication block indicates 1-time LED blinking.
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CH1 : Address 1
CH2 : Address 2
CH5 : Address 5
C2 terminal
C1 terminal
Green : Communication with CH8 watt-hour meter
Green : Communication with CH7 watt-hour meter
Green : Communication with CH6 watt-hour meter
Green : Communication with CH5 watt-hour meter
Green : Communication with CH4 watt-hour meter
Green : Communication with CH3 watt-hour meter
Green : Communication with CH2 watt-hour meter
Green : Communication with CH1 watt-hour meter
Yellow : Communication with DMS
RED : Power supply
CH3 : Address 3
CH4 : Address 4
CH6 : Address 2 CH8 : Address 8
CH7 : Address 7