---
lang: "en"
title: "LKM111: MODBUS RTU to IEC62056-21 Series Meter Gateway"
sku: "LKM111"
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brand: "MARCOM S.r.l."
end_of_life: "false"
---

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LKM111: MODBUS RTU to IEC62056-21 Series Meter Gateway (RS232 MODBUS side, RS232 meter side)

LKM series Modbus RTU to IEC62056-21 gateways are designed to be used with electricity meters that communicate according to the IEC62056-21 standard. Meters supporting the IEC62056-21 standard have reading tables that contain various data such as import energy, export energy, phase voltages, and currents. The LKM series Modbus RTU to IEC62056-21 gateway automatically reads these values and maps them into Modbus registers. Field devices or software systems can easily read data via the Modbus RTU protocol, so that energy meter readings can be easily integrated into field automation systems without the need to implement the IEC6056-21 protocol.

## Technical features

- RS232 Rx-Tx-GND connections on both modem and meter side
- Automatic reading of electricity meters communicating in IEC62056-21 standard and maps to predefined MODBUS register table
- Modbus address configurable via Modbus commands
- Reading period configurable on IEC6056-21 side via Modbus commands
- Reading table number configurable on IEC6056-21 side via Modbus commands
- Wide range power input: 5V - 24V DC
- Wide operating temperature range from -40 to 85 °C
- Very small form factor, only 2.1 x 4.2 x 4.4 cm
- Customization of the reading process and register tables according to customer requests
- Firmware upgradable via serial line

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Source: https://shop.marcomweb.it/en/dlms/lkm111-modbus-rtu-to-iec62056-21-series-meter-gateway

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.