---
lang: "en"
title: "LKM655 Gateway for meters with protocol from MODBUS TCP to IEC62056-21"
sku: "LKM655"
canonical_url: "https://shop.marcomweb.it/en/modbus/lkm655-gateway-for-meters-with-protocol-from-modbus-tcp-to-iec62056-21"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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LKM655 Gateway for meters with protocol from MODBUS to IEC62056-21 with 2 10/100Base-T(x) ports, 1 RS232 serial port and 1 RS485 port and BPL (Broadband Power Line Link)

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

## Technical Features

- Supports 2 10/100Base-T(X) ports + 1 BPL link
- Wide spectrum three-phase input, 110V-240V/50-60Hz wide spectrum
- Supports PHY speed up to 30 Mbps over BPL with up to 10 hops and 1000 nodes
- Up to 432 subcarriers from 2 to 28 MHz analog bandwidth over BPL
- LDPC-C FEC support with 128-bit AES core over BPL
- Supports Full/Half-Duplex, auto MDI/MDI-X on each port
- 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 serial gateway to Modbus TCP with MQTT publisher
- IEC meter to Modbus RTU TCP/IP gateway with MQTT publisher
- Read up to 20 IEC meters and convert their data to Modbus TCP or RTU
- Read up to 48 OBIS registers, all user-configurable from the web interface
- MQTT publisher with different data transfer options
- OBIS values as data objects
- OBIS values as Modbus frames
- Easy to follow meter reading and Modbus communication status from the web interface
- Easy to follow OBIS to Modbus mapping status from the web interface
- Easy to follow meter reading data from the web interface
- IP filter based on White List or Black List up to 20 IP addresses
- Firmware update via web
- Possibility to store 2 firmwares on the same device (only 1 active)
- Wide operating temperature range from -40 to 85 °C
- Robust IP-40 metal housing design
- DIN rail mounting

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Source: https://shop.marcomweb.it/en/modbus/lkm655-gateway-for-meters-with-protocol-from-modbus-tcp-to-iec62056-21

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