Start Here; Mqtt-Ldm Generic And Sparkplugb; Using The Mqtt Ldm Generic Implementation; Using The Sparkplugb Implementation - ProSoft Technology MVI69E-LDM-MQTT Quick Start Manual

MVI69E-LDM-MQTT ♦ MQ Telemetry Transport
CompactLogix® Platform
1

Start Here

MQTT is a lightweight messaging protocol, ideal for passing IIoT (Industrial Internet of
Things) data from remote locations. For more information, see the
Specification.
This Quick Start Guide describes how to:

Obtain sample applications.

Run MQTT application programs.

Setup your LDM development environment.

Customize and build your own MQTT application programs.
1.1

MQTT-LDM Generic and SparkplugB

1.1.1 Using the MQTT LDM Generic Implementation

The mqtt-ldm
website.
This document provides step-by-step information on how to enable communication
between Rockwell Automation
MQTT Explorer.
The goal is to read data from the PLC and publish to topics on an MQTT broker. The
module also allows subscription to topics on an MQTT broker to receive new values
published by other MQTT clients and then write them to the PLC. This is accomplished
by running the sample application on the MVI69E-LDM while connected to the MQTT
broker.
The MVI69E-LDM acts as a Message Queuing Telemetry Transport (MQTT) client. This
document references two public MQTT brokers that are available on the Internet for
testing.
Sample data exchanges can be accomplished in unencrypted mode and in encrypted
mode.
The sample application can be used as-is, or you can follow the step-by-step instructions
on how to build it from source code. The sample application features may be extended
to suit your needs.

1.1.2 Using the SparkplugB Implementation

This document provides step-by-step information on how to enable communication
between a CompactLogix PLC and Inductive Automation
SparkplugB.
The goal is to read data from the CompactLogix PLC, then publish it by a topic to the
MQTT broker. Another MQTT client will subscribe to that topic in that MQTT broker, so
that the client can present the PLC information to the user. Additionally, the MQTT client
can publish data of that topic to the MQTT broker. The LDM-MQTT client can subscribe
to it and write the data to the PLC.
In the MQTT protocol, one MQTT client does not require to be programmatically linked
to another MQTT client.
ProSoft Technology, Inc.
is a software library available for free from the ProSoft Technology
's CompactLogix
®
MQTT v3.1.1
®
PLC and a simple MQTT broker, using
's Ignition, using MQTT
®
Start Here
Quick Start Guide
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