Click PLC Modbus ASCII Protocol
We will now look at the click plc modbus ascii protocol. This communication will happen in PLC ladder logic and communicate through the serial port (RS485) to a Solo process temperature controller. Modbus ASCII will be the communication protocol.
More information can be obtained on our website. This includes all of the links mentioned in this video.
https://accautomation.ca/click-plc-modbus-ascii-protocol
Modbus is a communication method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the Modbus Master (Client) and the devices supplying information are Modbus Slaves (Servers). This protocol was originally developed by Modicon systems.
Modbus protocol comes in basically three different types. Ethernet (Modbus TCP) or Serial (Modbus RTU or Modbus ASCII). Modbus TCP and Modbus RTU come as standard protocols in the productivity series of PLCs.
We will connect the Click PLC to a Solo process temperature controller. This will be done using the Modbus ASCII protocol over serial RS485 communication wire. (Media) The present and set values (PV / SV) will be read from the Solo controller and the set value will be written when required. Let's get started.
Previously we discussed:
Click PLC Installing the Software
https://accautomation.ca/click-plc-installing-the-software/
Click PLC Establish Communication
https://accautomation.ca/click-plc-establish-communication/
Click PLC Numbering System and Addressing
https://accautomation.ca/click-plc-numbering-system-and-addressing
Click PLC Timers and Counters
https://accautomation.ca/click-plc-timers-and-counters
Click PLC Program Control Instructions
https://accautomation.ca/click-plc-program-control-instructions
Click PLC Shift Register Instruction
https://accautomation.ca/click-plc-shift-register-instruction
Click PLC Drum Instruction
https://accautomation.ca/click-plc-drum-instruction
Click PLC Send and Receive Instructions
https://accautomation.ca/click-plc-send-and-receive-instructions
Click PLC AdvancedHMI Communication
https://accautomation.ca/click-plc-advancedhmi-communication
Modbus RTU Click PLC Master to BRX PLC Slave Communication
https://accautomation.ca/modbus-rtu-click-plc-master-to-brx-plc-slave-communication
Video
https://youtu.be/CIsj-Xppoog
Click PLC HMI Rotary Encoder Dial Input
https://accautomation.ca/click-plc-hmi-rotary-encoder-dial-input
Video
https://youtu.be/mix9k2RTdII
High-Speed Counter - Part 1
https://accautomation.ca/click-plc-high-speed-counting-part-1
High-Speed Count Mode Video
https://youtu.be/P3l34unyAyU
Interval Measurement Mode Video
https://youtu.be/-t8JSKruilE
Duration Measurement Mode Video
https://youtu.be/znF6PRwGq-Y
Frequency Measurement Mode Video
https://youtu.be/m0I9P5AoFqE
Click PLC High-Speed Counter - Part 2
https://accautomation.ca/click-plc-high-speed-counting-part-2
External Interrupt Mode
https://youtu.be/UxFffVddUt4
Pulse Catch Mode
https://youtu.be/2H0zwul1X3o
Filter Pulse Mode
https://youtu.be/FNbYAkBwIsQ
Frequency Measurement and High-Speed Count Mode
https://youtu.be/qV3jgRszghE
Analog Dusk to Dawn Program
https://accautomation.ca/click-plc-analog-dusk-to-dawn-program
https://youtu.be/JlxTBlk6IJY
PID using Factory IO
https://accautomation.ca/click-plc-pid-using-factory-io
https://youtu.be/JGB9e__MWPc
PID Instruction and Autotuning using Factory IO
https://accautomation.ca/click-plc-pid-instruction-and-autotuning-using-factory-io
https://youtu.be/QoMw1SGW-gA
Logging Data with Time and Date Stamp
https://accautomation.ca/click-plc-logging-data-with-time-and-date-stamp
https://youtu.be/CQ5xa5UZPng
Stride Field Remote IO Modules Modbus TCP Ethernet
https://accautomation.ca/stride-field-remote-io-modules-modbus-tcp-ethernet
Stride Field Remote IO Modules Unboxing SIO MB12CDR and SIO MB04ADS
https://youtu.be/GbZNgcbVaLM
Stride Field Remote IO Modules Powering and Configuring
https://youtu.be/oVzWgkUn-D0
Modbus RTU TCP Remote IO Controller BX-MBIO
https://accautomation.ca/modbus-rtu-tcp-remote-io-controller-bx-mbio
Modbus RTU TCP Remote IO Controller BX-MBIO Hardware
https://youtu.be/cqP78u4YVGQ
Modbus RTU TCP Remote IO Controller BX-MBIO Powering and Configuring
https://youtu.be/XIsL86ou44U
Click PLC to Modbus TCP RTU Remote IO Controller BX-MBIO
https://accautomation.ca/click-plc-to-modbus-tcp-rtu-remote-io-controller-bx-mbio
https://youtu.be/tOYg97PcMbc
The entire Click PLC series can be found at this URL:
https://accautomation.ca/series/click-plc/
There are several reasons why we are using the Click PLC. Here are just a few.
- Investment is low for the hardware and the software is free
- Standalone PLC with built-in I/O
- Communication ability - Ethernet Port, RS232, RS485 - support for protocols such as Modbus RTU, Modbus TCP, etc.
- Ability to expand the system with a variety of modules including RTD and Thermocouple inputs directly.
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