Modbus Data Logger


Ethernet Modbus Data Logger is an advanced data logger which allows the user to gather data from different serial Modbus RTUs at regular intervals. It gathers all these data and archives it as CSV files. Ethernet Modbus Data Logger has inbuilt RTC, which helps the system to time stamp the data as and when it is gathered. EMDL has inbuilt ethernet interface which helps the user to download the log files from anywhere in the Local Area Network. There is no need to shutdown the system to recover the data. User can simply download the CSV files, whilst EMDL will continue to log the data without any interruptions. EMDL offers versatile web interface for data download and also for configuring the device. All the configuration pages are password protected. User can browse the device anywhere from LAN and set the required configurations and download the desired files.






  • Automatic recording of data at particular interval
  • Built in RTC - time stamp adding to the data
  • Standalone unit, compact, economical and robust design
  • Browser based data retrieval
  • Support Modbus RTU protocol
  • Configurable Baud rate and serial settings
  • Supports up to 32 RTUs
  • Configurable logging interval
  • Configuration through web pages served by inbuilt web server



  • For monitoring and analysing the data for quality & logging purposes
  • Ideal for paperless record
  • Ready-to-use and easy to configure
  • Low-power consumption
  • No software is required for configuration of the data
  • Download the file from anywhere on the local network


  • Industrial automation data logging
  • Temperature & Energy monitoring
  • PLC data monitoring
  • Process parameter monitoring
  • Energy audit application





1  Data Rates  9600 bps to 115.2 kbps
2  Protocol Modbus RTU
 (Master mode)
 Protocol Modbus RTU (Master mode)
3  Communication port  RS485 2-wire & 10/100 base Ethernet
4  File Format  CSV files
5  Storage  MicroSD card 4GB
6  Configuration  Web based
7  Power Supply  9-32 VDC, Less than 1 watt adapter
8  Operating Temp  0º to + 55ºC
9  Storage Temp  -40º to + 85ºC
10  Connectors  • DB9 Female for RS485
 • RJ45 for LAN connection
 • USB 2.0 port with ‘B’ type connection



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