MODBUS RTU to IEC62056-21 Protocol Meter Gateway With RS485 2 Wire Connection on Both Modem Side and Meter Side
LKM144
MODBUS RTU to IEC62056-21 Protocol Meter Gateway With RS485 2 Wire Connection on Both Modem Side and Meter Side
per one
137.75 EUR 145 EUR
If you buy less than 5 items you will lose your 5% discount
-    Auto reads Electricity meters that communicates in IEC62056-21 standard and maps in predefined MODBUS register table
-    Configurable Modbus address via Modbus Commands
-    Configurable Reading Period on IEC6056-21 side via Modbus Commands
-    Configurable Reading Table Number on IEC6056-21 side via Modbus Commands
-    Wide range power input: 3,3V – 28V DC
-    Wide operating temperature range from -40 to 85 °C
-    Very Small form factor, only 2.1 x 4.2 x 4.4cm
-    Customization of reading process and register tables based on client request
-    Firmware upgradable over serial line


MODBUS RTU AND IEC62056-21 CHARACTERISTICS
Modbus RTU Address
Default value is 0x01
Changeable via Modbus Command
Reading Period on IEC62056-21 Protocol Meter Side
Default value is 10 (in seconds)
Changeable via Modbus Command
IEC62056-21 Protocol Meter Read Out Table
Default value is 0x30 = ‘0’in ASCII
Changeable via Modbus Command
IEC62056-21 Protocol Meter Reading Method
2 Methods available
1. Method 1: Read full table and check BCC and register data
2. Method 2: Read each line of table and register data during reading
Default Method is 2
Changeable via Modbus Command
IEC62056-21 Protocol Meter Read Out Data
Date
Time
Import and Export Active Energy
Import and Export Reactive Energy
Reactive Energy in 4 Quadrants
Import and Export Maximum Demands
Active Power
Phase Currents for each phase
Phase Voltages for each phase
Frequency
Error Code
Extendable/Changeable via firmware change
Monitoring Parameters
IEC Read counter
Time counter (in seconds)
FW version
Query able via Modbus Commands


INTERFACE AND INDICATORS
RS485 Connector
Terminal Connector for 2 wire RS485 connection and GND both on Modem and Meter Side
Operation Mode Selection Switch
Selects the operating mode of the device.


Mode Selection
Modem Side Communication Parameters
Meter Side Communication Parameters
Mode 1 (LED 1 ON)19200 8N1
Starts with 300 baud rate and changes during transmission to target baud rate based on IEC62056-21 protocol
Mode 2 (LED 2 ON)
9600 8N1
Starts with 300 baud rate and changes during transmission to target baud rate based on IEC62056-21 protocol
Mode 3 (LED 3 ON)
19200 8N1
19200 7E1 Fixed
Mode 4 (LED 4 ON)
9600 8N1
9600 7E1 Fixed
LED Indicators
Following LEDs available to show system status.
1 – Mode 1 LED
2 – Mode 2 LED
3 – Mode 3 LED
4 – Mode 4 LED
5 – System LED: Blinks every second
6 – Tx LED: Sending data from Modem Side to Meter Side
7 – Rx LED: Receiving data from Meter Side to Modem Side


FIRMWARE UPGRADE
Upgrade over Serial Line
Available from Modem side Serial Line
RS485 on LKM144


Device must be on operating mode 19200 8N1 for firmware upgrade process.




POWER
Power Input
3,3V – 28V DC
Reverse Polarity Protection
Available
Thermal Shutdown Protection
Available


PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS
Enclosure
ABS, IP40
Dimensions
21 x 42 x 44 (h x w x d) mm
Weight
~60gr
Storage Temperature
-55 to 125 °C
Operating Temperature
-40 to 85 °C 
Operating Humidity
5% to 95%Non-condensing


LKM144: Modem side RS485, Meter side RS485, Modbus RTU to IEC 62056-21 Protocol Meter gateway
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