The Siemens 7KM2200-2EA30-1EA1 is a SENTRON PAC2200 energy meter for 3-phase low-voltage systems up to 400 V. It uses indirect current measurement via external x/5 A current transformers and is self-powered from the measured voltage. The Modbus TCP interface over RJ45 Ethernet makes it the choice for integration into industrial Ethernet networks, SCADA systems, and PLC-based energy management platforms.

Modbus TCP for Industrial Ethernet Integration

Modbus TCP carries the familiar Modbus protocol over standard Ethernet — no serial converters, no RS-485 wiring, no baud rate configuration. The 7KM2200-2EA30-1EA1 connects directly to an Ethernet switch port and communicates at 10/100 Mbit/s. This is the right choice when the energy meter sits on the same LAN as PLCs, HMIs, and engineering workstations — typical in industrial plants and machine-level energy monitoring.

Same Core Measurement as the PAC2200 Family

Like all PAC2200 meters, the 1EA1 measures active, reactive, and apparent energy and power with TRMS sensing. It supports 3-wire and 4-wire three-phase networks and is also suitable for single-phase applications. The S0 pulse output enables local forwarding of energy pulses to a building management system or third-party data logger independent of the Modbus TCP channel.

Decision Parameters