LKM Series Electricity Meter Protocol to Modbus Protocol Gateways with MQTT (and LoRaWAN)
See models & pricesLKM Series Electricity Meter to Modbus Protocol Gateways are designed to be used with electricity meters that communicate in IEC 62056-21, DLMS/COSEM or P1 Companion Standard. The meters that support IEC 62056-21, DLMS/COSEM and P1 Companion Standard expose many data values such as import energy, export energy, phase voltages and currents. LKM Series Electricity Meter to Modbus Protocol Gateways automatically read these values and map them to Modbus registers.
The LKM models with an Ethernet port read electricity meters with the IEC 62056-21 (Mode C) and DLMS/COSEM protocols and work in one of two device functions:
1. Serial Electricity Meter to Modbus TCP Gateway (meters on the RS232 or RS485 port, data given out as Modbus TCP)
2. TCP/IP Electricity Meter to Modbus RTU Gateway (meters on the network, data given out as Modbus RTU)
In both functions the meter data can also be sent to an MQTT broker at the same time.
Field devices or software systems can easily read data over Modbus RTU or Modbus TCP protocol based on device model, so that electricity meter reading can easily be integrated into field automation systems without the need for IEC 62056-21, DLMS/COSEM protocol or P1 Companion Standard implementation.
The LKM Series 868 MHz LoRaWAN Meter Reader models (LKM354, LKM454, LKM755, LKM354-Lite and LKM616) do everything the models above do and, in addition, send the meter data to a LoRaWAN network server through a LoRaWAN gateway. The send interval is set by the user. The OBIS codes to read are set by the user: up to 48 OBIS codes for each meter profile.
Typical applications: automated meter reading, telemetry, energy management.
LKM Lite models (LKM154-Lite and LKM354-Lite) are a cost effective solution for the same tasks. A Lite model has one Ethernet port and one RS485 port, reads up to 10 meters and sends its log only to a UDP server.
LKM655 and LKM755 add a BPL (Broadband Power Line) link, which allows the device to communicate with full transparent TCP/IP over low voltage power lines without extra cables.
LKM614, LKM615 and LKM616 are especially designed for EMH LZQJ-XC meters and are direct replacements for Variomod XC modules. LKM615 and LKM616 read the EMH LZQJ-XC meter with IEC 62056-21 (Mode C) or DLMS/COSEM, convert the data to Modbus TCP and send it to an MQTT broker. LKM616 also sends the meter data to a LoRaWAN network server through a LoRaWAN gateway.
* LKM655 and LKM755 are made in three versions: -PN-AC and -PP-AC with three-phase AC power input, -PP-DC with 9 - 36 V DC power input.
