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GRD-XF-4G Data Logger

Description

The Exemys GRD-4GM Series is a high-performance industrial telemetry solution designed for the remote monitoring and control of sensors in dispersed or isolated locations. Building on the legacy of the GRD-3G and GPRS models, the 4GM series introduces global 4G LTE Cat 1 connectivity with an optional Iridium Satellite fallback, ensuring mission-critical data reaches your server even from areas with zero cellular coverage.

The series is highly versatile, featuring models that range from pure serial-to-cellular gateways to high-density RTUs with up to 24 local I/O points. It supports a wide array of industrial protocols, including Modbus Master/Slave and WITS, and is fully user-programmable via a powerful text-based scripting engine for local logic and mathematical operations.

Data is pushed to a central server where the Middleware software automatically populates a MySQL database, which can then be visualized through a secure M2M web interface or integrated directly into a private SCADA system. With an internal memory for 100,000 readings, the GRD-4GM guarantees data integrity during network outages by using a “store and forward” mechanism.

Features

  • Data Logger with integral modem for 2G, 3G and 4G mobile networks
  • Analogue Inputs: 0-1vDC (Resolution 0.1mV); 0-10vDC (Resolution 1mV); 4-20mA (Resolution 1uA)
  • Digital I/Os: Transistor Type, Input activation +7vDC to 50vDC Max. Output: 50vDC @ 200mA Max.
  • Pulse Input: Max 45Hz, 10ms min.
  • Serial Ports: 1 x RS232 & 1 x RS485. Protocols, Modbus Master/Slave, NMEA, ITAS Iridium Satellite.
  • Can be used anywhere in the world with GSM/GPRS or Iridium Satellite.
  • Fully user programmable via windows software with custom scripting programming.
  • Configuration for channel labels, scaling, alarm levels etc. via web interface
  • 10-30vDC power supply (150mA at 12vDC, 100mA @ 24vDC)
  • Unit stores up to 100,000 readings if the network connection be lost and uploads readings when the connection is re-established
  • Unit can be configured to send direct SMS messages on alarm conditions

 

The GRD has 3 LEDs indicators.

PWR: Power applied to the GRD
GPRS: State of registration of the GRD in the GPRS network (GPRS, EDGE, 3G)
LINK: State of the connection between the GRD and the Middleware