Product Highlights
The PMC-1 (DC) is the natural companion to SSI’s SPS solar power supplies and other DC-powered field installations, enabling Modbus TCP-based energy data collection at remote sites without AC infrastructure. Its DC power input eliminates the need for a wall transformer or AC wiring at the metering location while preserving the full feature set of the standard PMC-1.
All PMC-1 features apply: six readable Modbus registers per channel, 15-minute demand intervals, independent per-channel register resets, eight diagnostic LEDs, and Ethernet connectivity via RJ-45.
Features
The SSI PMC-1 (DC) is the DC-powered variant of the PMC-1, providing two-channel Modbus TCP energy and demand data access for remote installations without AC power.
- DC power input — configured for DC operation; compatible with battery banks, solar power supplies, and other DC sources.
- Two 2-wire KY pulse inputs — +13VDC wetting voltage; compatible with dry contact and open-collector transistor outputs.
- Modbus TCP over Ethernet — RJ-45 connection; unique static IP address; responds to standard Modbus client queries.
- Six registers per channel — cumulative energy, instantaneous demand, average demand, peak demand, elapsed time, and raw pulse count.
- Non-volatile memory — all register values stored through power loss; registers independently resettable per channel.
- Expandable to 8 channels — compatible with EXP2, EXP4, and EXP6 expansion boards (PMC-1 V5 required).
- Eight diagnostic LEDs — sequential connectivity checklist for power, processor, configuration, Ethernet link, and Modbus communication status.
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