SOCOMEC
MID-Certified Energy Meters and UPS for Smart Building Sub-Metering
SOCOMEC (Benfeld, France) manufactures energy measurement, protection, and power continuity equipment — Countis and Diris Digiware series meters are MID-certified and widely used for BREEAM and ISO 50001 sub-metering in European commercial buildings. Modbus RTU/TCP interface enables direct KNX building automation integration.
Role in our panels
How we use SOCOMEC
Countis E24 three-phase meter: 5A CT input, Modbus RTU (RS485, 9600 baud default, unit ID 1-247) and Modbus TCP (port 502). Registers (all holding, FC3): 0x000C (active power P, int32, W), 0x0016 (reactive power Q, kVAR, int32), 0x0022 (apparent power S, kVA, int32), 0x0024 (power factor, int16, 0.001), 0x0034 (active energy Ea+, uint32, Wh), 0x0044 (phase voltage L1, uint16, 0.1V). Diris Digiware: DIN rail modular metering system — M-30 Modbus TCP hub accepts up to 8 I-30 sub-meter modules (each monitoring one three-phase circuit); single Modbus TCP address for the hub, sub-meter data accessed via hub registers. SOCOMEC Netys RT UPS: Modbus RTU register map — battery level (%), load (%), bypass mode (binary), autonomy (minutes). KNX integration: Weinzierl KNX Modbus TCP gateway (IP address of Countis E24 or Diris hub) — map registers to KNX DPT 13.013 (energy Wh), DPT 14.056 (power W), DPT 9.021 (power factor). BREEAM Ene 02 sub-metering: one Countis E24 per BREEAM sub-metering zone (lighting, HVAC, small power, transport) — KNX group addresses per zone for M&T reporting.
SOCOMEC Countis E24 and Diris Digiware meters connect via Modbus TCP to KNX gateway — active power, energy, and power factor values feed KNX building energy dashboards and BREEAM Ene 02 sub-metering reports.
Used in these project types
SOCOMEC products
Key components we install
Countis E24 three-phase CT meter
MID-certified three-phase sub-metering with Modbus TCP for KNX energy dashboards and BREEAM Ene 02
Diris Digiware M-30 + I-30 modular system
DIN rail modular metering hub with up to 8 sub-meter modules for multi-circuit distribution boards
Netys RT 1100 VA UPS
Line-interactive UPS with Modbus RTU for KNX panel power continuity and battery status monitoring
Diris A-40 power analyser
Advanced power quality analyser with harmonics, power factor, and energy logging via Modbus TCP
SOCOMEC FAQ
Which Modbus register holds active energy on the Countis E24?
Register 0x0034 (uint32, Wh) for active energy. On Diris Digiware, the hub register is 0x0100 + (sub-meter index × 0x60) + 0x0034 for each circuit.
Is the Countis E24 MID certified for billing-grade accuracy?
Yes — Countis E24 is MID Annex B certified, Class 1 accuracy. Suitable for tenant billing, BREEAM Ene 02 compliance, and ISO 50001 energy audits.
When to use Diris Digiware versus multiple Countis E24 meters?
Diris Digiware is more cost-effective per circuit for 4+ circuits in the same distribution board. Countis E24 is preferred for circuits in separate boards or buildings where individual Modbus TCP addresses are needed.
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