BRX Do-More PLC MQTT Communications
802 views
·
Oct 13, 2022
We will now look at the Do-More PLC MQTT communication protocol. MQTT stands for Message Queuing Telemetry Transport. This simple publish and subscribe communication protocol does not take too many resources.
Constrained devices with low bandwidth are ideal for MQTT. This protocol provides machine to machine (M2M) connectivity which is ideal for the Internet of Things. (IoT) This protocol is not for remote IO or real-time (deterministic) applications. MQTT is a good solution for applications that move data from hundreds or thousands of machines (sensors) to clients in many networks.
We will be installing a windows based broker called Mosquitto. The Do-More BRX PLC will be one of the clients publishing and subscribing to the MQTT broker. MQTT Lens (Chrome Browser App) will be the other client publishing and subscribing to the MQTT broker. Each client will share information. Let’s get started!
More information can be obtained on our website. This includes all of the links mentioned in this video.
https://accautomation.ca/brx-do-more-plc-mqtt-communications
The entire BRX Series PLC can be found at the following location:
https://accautomation.ca/series/brx-do-more-plc/
Here are the individual posts with video links:
Installing the Software
https://accautomation.ca/brx-plc-installing-the-software
https://youtu.be/iFI1ebP8Zkk
Establishing Communication
https://accautomation.ca/brx-plc-establishing-communication
https://youtu.be/shU5g8MA8VM
Numbering Systems and Addressing
https://accautomation.ca/brx-plc-numbering-systems-and-addressing
https://youtu.be/-GiKnIDycKY
First Program
https://accautomation.ca/brx-plc-first-program
https://youtu.be/ANSNhdlm_Ao
Monitoring and Testing the Program
https://accautomation.ca/brx-plc-monitoring-and-testing-the-program
https://youtu.be/gv3d0vozxac
Online Editing and Debug Mode
https://accautomation.ca/brx-plc-online-editing-and-debug-mode
https://youtu.be/77pemu3zXrE
Timers
https://accautomation.ca/brx-plc-timers
https://youtu.be/0qU9kgunPi4
Counters
https://accautomation.ca/brx-plc-counters
https://youtu.be/k84VQy8ifgg
Program Control
https://accautomation.ca/brx-plc-program-control
https://youtu.be/1fewvxxUyW4
Shifting Instructions
https://accautomation.ca/brx-plc-shifting-instructions
https://youtu.be/FVTxIl8VKmg
Drum Instruction
https://accautomation.ca/brx-plc-drum-instruction
https://youtu.be/ILokPN1Aadk
Serial Communication – Modbus RTU to Solo Process Temperature Controller
https://accautomation.ca/brx-plc-serial-communication-modbus-rtu-to-solo-process-temperature-controller
https://youtu.be/PndrIfBImGQ
Data Logging
https://accautomation.ca/brx-plc-data-logging
https://youtu.be/OBv7XJ9mJeA
Email – Text SMS Messaging Gmail
https://accautomation.ca/brx-plc-email-text-sms-messaging-gmail
https://youtu.be/0L74qOwwWAE
Secure Email Communication
https://youtu.be/hhVawCL3ztU
AdvancedHMI Communication – Modbus TCP
https://accautomation.ca/brx-plc-advancedhmi-communication-modbus-tcp
https://youtu.be/1TjsdLwTKM0
HTTP JSON Instructions
https://accautomation.ca/brx-plc-http-json-instructions
https://youtu.be/MrCt1STwILU
Analog Dusk to Dawn Program
https://accautomation.ca/brx-plc-analog-dusk-to-dawn-program
https://youtu.be/7mNO7Lhq7y0
INC DEC 512 Registers for DMX512
https://accautomation.ca/brx-plc-inc-dec-512-registers-for-dmx512
https://youtu.be/jCGw9i6qbHk
PID with PWM Output
https://accautomation.ca/brx-plc-pid-with-pwm-output
https://youtu.be/wUNSv-0e5Rc
PID Ramp Soak Profile
https://accautomation.ca/brx-plc-pid-ramp-soak-profile
https://youtu.be/RVOnDwFi1cc
BRX Do-More Simulator MQTT Publish-Subscribe
https://accautomation.ca/brx-do-more-simulator-mqtt-publish-subscribe
https://youtu.be/assMcr7caa8
There are several reasons why we are using the BRX Series Controller. Here are just a few.
- Standalone PLC with built-in I/O
- Built-in Data Logging
- Communication ability - Ethernet Port, RS232, RS485, USB - support for protocols such as Modbus RTU, Modbus TCP, ASCII, K-sequence (DirectLOGIC users), Custom Protocols (ASCII over serial, TCP or UDP over Ethernet)
- Built-in Analog input and output
- Integrated motion control
- High-speed counters
- Powerful instruction set (Video of Instructions in software)
- Ability to expand the system with a variety of modules
- Part of the Do-More series of PLCs which use the same free software. (Do-More Designer)
- Integrated simulator in the software capable of external communications for testing
The BRX series of programmable logic controllers consist of four different units. They differ depending on the Inputs and Outputs built into the unit and if it has the ethernet port.
No I/O Micro PLC unit – (BX ME)
10 Point Micro PLC unit – (BX 10/10E)
18 Point Micro PLC unit - (BX 18/18E)
36 Point Micro PLC unit - (BX 36/36E)
These CPUs (Central Processing Units) are also known as MPU (Multi-Processing Units) because of the communication capabilities.
https://www.accautomation.ca
Show More
Show LessComments
loading text loading
loading text loading
loading text
loading text loading
loading text
loading text loading
loading text
loading text loading
loading text