PM2230
The EasyLogic PM2230 is an economical power meter optimised for sub-panel incomers in shopping mall common areas and office buildings. It is the most widely used entry-level model for multi-tenant billing and regulatory compliance reporting. 34 register points are pre-defined in Argus.
| Voltage | Phase-neutral + line-line, all phases |
| Current | I L1/L2/L3/Neutral — 0.01 A resolution |
| Power | kW / kVAr / kVA — phase + total |
| Reactive Energy | Q1 kVArh (inductive) · Q4 kVArh (capacitive) |
| Energy | kWh import · kWh export · kVAh |
| THD | Voltage + Current harmonic distortion |
| Accuracy | Class 0.5S (IEC 62053-22) |
| Communication | RS485 Modbus RTU · ASCII |
| Data Type | FLOAT32 Big-Endian + INT64 energy |
| Mounting | DIN rail / 96×96 mm panel front |
| Power Supply | 100–277 V AC/DC |
Integration with Argus EMS
The PM2230 connects to Argus EMS over Modbus RTU over an RS-485 serial line, 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 RTU over an RS-485 serial line |
| Connection path | The RS-485 line lands on a Modbus TCP gateway or on the field PC serial port |
| Default polling period | 60 seconds (field agent) |
| Points in the ready template | 34 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 puts a wider measurement set on top of the entry level: alongside sub-metering and tenant billing, power factor and demand can be tracked as well. If power quality analysis is needed on the main busbar, a PQ-class device is required.
The device has a serial output, so it joins the existing RS-485 line instead of requiring a dedicated Ethernet run into the panel. The more devices share one line, the longer a polling round takes, which is why the field agent reads each line sequentially and waits 60 ms between devices by default. A slave ID collision and a missing line termination are the two most common commissioning mistakes.