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How does it work?

The equipment allows a direct connection with an MQTT broker through the mobile network, supporting TLS 1.2 encryption to make communication secure.

In addition to their own inputs / outputs, all GRD-MQ models can take information from Modbus slaves connected to their serial port. GRD-MQs include unique features in industrial MQTT equipment such as the ability to function as a datalogger. It has internal memory and allows adding date-time to publications so as not to lose any event if the equipment was off-line.

Automation can also be carried out locally by scripting and configuring the equipment remotely by MQTT via broker.

 GENERAL FEATURES

  • MQTT Client
  • 3G + 2G Cellular Communication
  • American and European bands
  • 4-20mA y 0-10V Inputs
  • Digital Inputs
  • Pulse Counter Inputs
  • Digital Outputs
  • Serial Ports
 

 FUNCTIONALITY

  • MQTT Client to connect with broker
  • Modbus Master protocol in port RS232/485 for expansion I/O or control of external modules
  • Modbus Slave protocol for local access to I/O
  • Script based programming logic
  • Alarms and Control by SMS messages
  • Event Registration On Line (GPRS signal) and Off Line (no GPRS signal)
  • Remote control of outputs via subscription
  • Remote Serial Port Mode via MQTT
 

 MODELS

MODELS SERIAL PORT I/O DISCRETES ANALAOG INPUTS I/O MODBUS EXPANSION
GRD1620-MQ-3G 1 RS232 / 1 RS485 --- --- YES
GRD3625-MQ-3G 1 RS232 / 1 RS485 6 Configurables 6 DI pulses 45 Hz 4 0-10V / 4-20mA YES
GRD3534-MQ-3G 1 RS232 / 1 RS485 6 Configurables 6 DI pulses 45 Hz 8 0-10V / 4-20mA YES
 
 
 

 


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