---
lang: "en"
title: "LKM141:Gateway from IEC62056-21 energy meter to MODBUS RTU"
sku: "LKM141"
canonical_url: "https://shop.marcomweb.it/en/dlms/lkm141gateway-from-iec62056-21-energy-meter-to-modbus-rtu"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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LKM141:Gateway from IEC62056-21 energy meter (RS485 port) to MODBUS RTU (RS232 port)

The LKM series Modbus RTU to IEC62056-21 gateway is designed for use with electricity meters that communicate using the IEC62056-21 standard. Meters supporting the IEC62056-21 standard have read tables containing 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 to Modbus registers. Field devices or software systems can easily read data via the Modbus RTU protocol, allowing energy meter readings to be smoothly integrated into field automation systems without the need to implement the IEC6056-21 protocol.

## Technical Features

- 
- RS232 DB9 male on the modem side and 2-wire RS485 on the meter side
- Maximum 10 energy meters and 24 registers per energy meter
- Automatically reads electricity meters communicating in the IEC62056-21 standard and maps to the predefined MODBUS register table
- Modbus address configurable via Modbus commands
- Reading period configurable on the IEC6056-21 side via Modbus commands
- Reading table number configurable on the IEC6056-21 side via Modbus commands
- Dual power input: can be powered via RS232 line or external power input
- Wide range power input: 3.3 V - 28 V 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 table logging according to customer request
- Firmware upgradeable via serial line

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Source: https://shop.marcomweb.it/en/dlms/lkm141gateway-from-iec62056-21-energy-meter-to-modbus-rtu

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