Modbus Call Alert


Mobile technology is creating wonders around the globe. We at Gauranga have used this technology in industrial usage to speed up the communication process. Every Industry has a standard protocol set for safety measures and when there is a deviation from that, the system alerts the pre-configured users with voice call alerts. Call Alert module has industry standard Modbus TCP/IP interface which makes it compatible with range of SCADA, HMI and PLCs, and also has inbuilt codec and GSM module. The Modbus Call Alert module, with the help of SCADA or PLC can trigger a pre-recorded voice call to a pre-configured mobile number and plays the pre-recorded voice file. The voice file is stored in the MicroSD card. The MicroSD has 24bit codec for voice clarity and supports multilingual voice recording. The module can also maintain the log of each call for further analysis.






  • Modbus TCP/IP trigger based call alert
  • Easy integration
  • Easy configuration of mobile numbers
  • Recordable voice alerts
  • Up to 4GB of voice data
  • Ethernet interface
  • Web-based configuration with password protection
  • Repeat play option
  • Network recovery through USB port
  • Logs the alerts with RTC time stamping
  • Supports .WAV format with different sampling frequency
  • Firmware update feature for future up gradation



  • Pre-recorded voice based call alerts for different alarms
  • Clear voice notification of alarms to the remote users
  • Multilingual voice alarm for different users
  • Reliable instant communication
  • Industry standard Modbus TCP/IP interface
  • Simple and easy to integrate
  • Less power consumption



  • Industrial Automations
  • Building Automations
  • Fire safety panels
  • General Alarm notifications




1  Power Supply  9-32VDC or 230VAC external power adapter
2  Interfaces  10/100MB base Ethernet
3  Network recovery  USB port
4  Protocol supported  Modbus TCPIP Slave
5  Storage  MicroSD card 4GB
6  Configuration  Web-based
7  Supported file format  *.Wav
8  Supported sampling frequency  8KHz, 32KHz, 44.1KHz 16bit stereo
9  Call Output  Call established through inbuilt GSM Modem
10  GSM Module  GSM 850MHz, EGSM
 900MHz, DCS 1800MHz, and PCS 1900 MHZ.
11  Operating temperature  -20º to +70º Celsius
 (subjected to MicroSD card temperature)
12  Storage Temperature  -45º to +85º Celsius



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