Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.
Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
| point | address (0-based) | type | scale | unit |
|---|---|---|---|---|
| Serial number | 0 | F32BE | 1 | |
| Energy index | 2 | F32BE | 1 | kWh |
| Volume | 4 | F32BE | 1 | Litre |
| Instantaneous power | 6 | F32BE | 0.1 | kW |
| Instantaneous flowrate | 8 | F32BE | 1 | Litre/h |
| Outgoing temperature | 10 | F32BE | 0.1 | °C |
| Return temperature | 12 | F32BE | 0.1 | °C |
| Temperature difference | 14 | F32BE | 0.01 | °K |
| Air conditioning energy index | 16 | F32BE | 1 | KWh |
| terminals | A = D+, B = D- |
| A/B polarity | protected against polarity reversals |
| termination | 120 Ohm with switch |
| connector | terminal block |
| isolation | Double isolation |
| wiring notes | 2 wires, Differential Half-Duplex |
| max registers/read | 22 |
| sentinel values | Alarm data on the meter are returned in format 999999 (decimal). Optional data are returned with a value of 000000 (decimal) when not available. Negative values are transmitted in absolute values. |
| protocol notes | The Modbus data returned are updated with the meter data every minute. Communication priority is given to the optical connector, in which case Modbus data remain on the latest meter values read prior to optical communication. |
| serial register | 0000 |
| power | 3.6 V - 12 V DC, Current < 35 mA (120 mA in Modbus communication) |
| environment | Storage temperature: -10 °C ... +60 °C, Operating temperature: +5 °C ... +55 °C, Relative humidity: < 95 % |
| certifications | EN 60950, EN 61000-6.2, EN 61000-6.3 |
| doc revision | HE-0063.0-FR-03.16 A4003834-AA, Valid 2016 |
Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.
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