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In this tutorial, we will be demonstrating the ability of the RediGate to subscribe to topics published by another RediGate in JSON data format, and serve that data up to a Modbus TCP host. The second part of the example will show command data going from the Modbus host to the field RediGate.
This tutorial uses two RediGates with Internet connectivity to the AWS IoT service. (You could use a similar configuration to a generic MQTT broker, but note that because of MQTT topic restrictions, there may be additional requirements to make the Peer-to-peer application work properly on some platforms, such as IBM or Azure IoT.)
In this example, the two sites are called "Remote Data Publisher" and "Local Data Concentrator" for identification purposes only.
This example illustrates the ability of the RediGate to serve as a cellular replacement for two sites using point-to-point radios for communication. With some adaptation, it may also be used for sharing data in a point-to-multipoint arrangement.
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