ION7400
The PowerLogic ION7400 is a high-end energy meter designed for large industrial facilities and utility applications. Comprehensive I/O options, advanced power quality analysis and high reliability make it a favourite for critical infrastructure metering.
| Voltage / Current | Full phase measurement, high accuracy |
| Harmonics | Up to the 63rd harmonic — every phase |
| Power Quality | IEC 61000-4-30 Class A — full PQ analysis |
| Energy | Revenue grade kWh · kVArh · kVAh |
| Events | Sag/swell, interruption and transient logging |
| PQ Standard | IEC 61000-4-30 Class A |
| Communication | Ethernet Modbus TCP · DNP3 · IEC 61850 |
| I/O | Extended digital + analogue I/O |
| Data Logging | Comprehensive event log |
| Accuracy | Revenue grade — Class 0.2S |
Integration with Argus EMS
The ION7400 connects to Argus EMS over Modbus TCP over Ethernet, and because a ready register template ships with the platform you do not have to work out a point map on site. The field agent polls the device every 60 seconds by default, writes the reading into a local queue first and then forwards it to the server over MQTT/TLS; nothing is deleted before the server acknowledges it. Hourly and daily summaries are derived from these raw readings, and the consumption and cost screens are fed from the same series.
| Protocol | Modbus TCP over Ethernet |
| Connection path | Directly over Modbus TCP (port 502) — no separate gateway is needed |
| Default polling period | 60 seconds (field agent) |
| Points in the ready template | 50 registers |
| Consumption calculation | Difference of the kWh import index over the period (MAX − MIN) |
| Data assurance | Local queue plus server acknowledgement; nothing is deleted before it is confirmed |
When Is This Model the Right Choice?
It is made for the most critical points of a facility — transformer outgoers and main busbars — combining high sampling, wide harmonic coverage and event logging. The reference metering point that bill reconciliation relies on is usually chosen from this class.
The device serves Modbus TCP directly over Ethernet, so no gateway is needed. In exchange, each device needs an IP address on the network and a switch port inside the panel. If more than one master polls the same device at once — a building automation system alongside Argus EMS, for example — its concurrent connection limit has to be respected.