---
lang: "en"
title: "LKM254 Protocol Meter Gateway from MODBUS TCP to IEC62056-21"
sku: "LKM254"
canonical_url: "https://shop.marcomweb.it/en/modbus/lkm254-protocol-meter-gateway-from-modbus-tcp-to-iec62056-21"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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LKM254: Protocol Meter Gateway from MODBUS TCP to IEC62056-21 with 2 x 10/100Base-T(x) Ports, 1 x RS232 and 1 x RS485 Serial Ports

The LKM series electricity meter protocol to Modbus protocol gateways are designed for industrial-grade communication with energy meters, and especially for more complex industrial and infrastructure facilities. The LKM series electricity meter protocol to Modbus protocol gateways have been designed to offer various features such as wide temperature range, wide input power range, and different connectivity ports. Therefore, the LKM Series Electricity Meter Protocol to Modbus Protocol gateways are the best choice for all applications that require reading IEC62056-21 meters and converting the data to Modbus protocol.
Modbus protocol.

## Technical Features

- Supports 2 10/100Base-T(X) ports
- Supports Full/Half-Duplex, auto MDI/MDI-X on each port
- DHCP server capability
- Supports 1 x RS232 and 1 x RS485 Serial connection up to 115200 Baud
- Integrated web interface for ease of use
- 2 different gateway operating modes:
- IEC Meter to Modbus TCP serial gateway with MQTT editor
- IEC Meter to Modbus RTU TCP/IP gateway with MQTT editor
- Reads up to 20 IEC meters and converts their data to Modbus TCP or RTU
- Reads up to 48 OBIS registers, all user-configurable from the web interface
- MQTT editor with different data transfer options
- OBIS values as data objects
- OBIS values as Modbus frames
- Easy to monitor meter reading and Modbus communication status from the web interface
- Easy to monitor OBIS to Modbus mapping status from the web interface
- Easy to monitor meter reading data from the web interface
- TCP/IP connection filter based on White List or Black List up to 20 IP addresses
- Firmware update via web
- Ability to store 2 firmwares on the same device (only 1 active)
- Wide spectrum AC or DC power options
- Wide operating temperature range from -25 to 70 °C in AC and -40 to 85 °C in DC
- Robust IP-40 metal housing design
- DIN rail mounting
- Power input: wide range from 47 Hz to 63 Hz AC, 90 - 265 V AC (100 - 370 V DC)

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Source: https://shop.marcomweb.it/en/modbus/lkm254-protocol-meter-gateway-from-modbus-tcp-to-iec62056-21

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