WireLinX™ IoT PLC

Contributed by Buraphatronics, Infineon and BDH Group

Author

P' Toon (EE, Burapha University)

• www.Buraphatronics.com

WireLinx Programmable Logic Control (PLC) User Manual

Table of Contents

• WireLinx Programmable Logic Control (PLC) User Manual

  • Table of Contents

  • 1. Introduction

    • Overview of WireLinx PLC

    • Key Features

    • Applications

  • 2. Hardware Specifications

  • 3. Getting Started

    • Installing Required Software

    • Configuring the Web Interfac

  • 4. Programming WireLinx PLC

    • Supported Programming Languages

    • Internal Memory Structure

  • 5. Communication Protocols

    • Wi-Fi and Web-based Configuration

    • RS-232 and RS-485 Communication

    • Modbus RTU & Modbus TCP

  • 6. Working with I/O

  • 7. Safety and Maintenance

  • Training Topics for Basic PLC

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1. Introduction

Overview of WireLinx PLC

WireLinx PLC is a programmable logic controller designed for industrial automation and IoT applications. It features a modular and flexible architecture, allowing for seamless integration with existing systems.

Key Features

• Core Processor: ESP32-S3 with built-in Wi-Fi

• Digital Inputs: Source Type with Isolation

• Digital Outputs: Sink Type with Isolation

• Communication Interfaces: RS232 , RS485

• Real-Time Clock (RTC) Support

• Web-Based Configuration Interface

• Supports Ladder Logic Programming

Applications

WireLinx PLC can be used in:

• Industrial automation

• Smart building systems

• SCADA & remote monitoring

• Energy management

• IoT & smart agriculture

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2. Hardware Specifications

No.	Component	Specification	Number
	Processor	ESP32-S3
1	Power Suppply	DC Voltage 24VDC.
2	Analog Inputs	Voltage Input 0-10V. Resolution 16 Bits	4 Channels
3	Digital Inputs	24VDC Source Type	8 Points
4	Digital Outputs	24VDC Sink Type 100 mA/ch	8 Points
5	RS-485	1 Channel Support ASCII , FXCPU , ModbusSlave	1 Channel
6	RS-232	1 Channel Support ASCII , FXCPU , ModbusSlave	1 Channel
7	USB	USB-Serial Programmable Port	1 Channel
8	Jumper	Switch Select Power Source Terminal / USB
9	LoRa extenal antenna	Support antenna 2.4 GHZ
10	Wi-Fi extenal antenna	Support antenna 433 Mhz

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3. Getting Started

Installing Required Software

• Download and install GX-WORK2

Operating Buttons and Status Indicators

No	Type	Symbol	Status	Descriptions
1	LED	Power	ON = Power Ready	Indicator power plc ready for use.
2	LED	RUN	ON = PLC RUNOFF= PLC STOP	Indicator plc operation status
3	LED	ERR	ON = PLC ERROROFF= NORMAL	Indicator PLC operation abnornal
4	LED	WAP	ON = Wifi AccessPoint EnableOFF = Wifi AccessPoint DisableBLINK = Communication Working	Indicator wifi accesspoint status
5	LED	STA	ON = Wifi Station ConnectedOFF = Wifi Station DisconnectBLINK = Communication Working	Indicator wifi accesspoint status
6	BUTTON	RESET	Press = RESET PLC	Restart PLC
7	BUTTON	RUN/STOP	Press = RUN OR STOP PLC	Run/Stop PLC

About Button Operation

• Reset PLC : Press for restart all process

  
• Run/Stop PLC : Press hold 2 sec for switch to toggle before mode.

  
• Reset parameter config: Reset Default Parameter config.

  

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4. Programming WireLinx PLC

Supported Programming Languages

• Ladder Logic

Internal Memory Structure

Memory Type	Usage	Address Range	Capacity
X (Input Relays)	Represents physical input points	X0 - X377	256 points
Y (Output Relays)	Represents physical output points	Y0 - Y377	256 points
M (Internal Relays)	General-purpose internal logic storage	M0 - M3071	3072 points
S (Step Relays)	Used for step sequence control	S0 - S999	1000 points
D (Data Registers)	Stores numerical values for processing	D0 - D7999	8000 words (16-bit each)
D (Data System)	Stores numerical values for processing	D8000 - D8250	251 words (16-bit each)
T (Timers)	Used for timing operations	T0 - T255	256 timers
C (Counters)	Used for counting operations	C0 - C199	200 counters

See detail About D8000 - D8250

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5. Communication Protocols

Wi-Fi and Web-based Configuration

• Wireless access to PLC settings.

  
• Remote programming and monitoring.

RS-232 and RS-485 Communication

• RS-232: Used for general-purpose serial communication.

• RS-485: Ideal for industrial communication and Modbus RTU.

Modbus RTU & Modbus TCP

• Table Modbus Address Mapping common with ModbusTCP Server and ModbusRTU Slave Mode.

Modbus	PLC	Type	Access	Function Code	Description
00001 - 01000	S0 - S999	Coil (Discrete Output)	Read/Write	01 (Read) / 05, 15 (Write)	Stores ON/OFF values for outputs
10001 - 11536	M1 - M1535	Discrete Input	Read-only	02 (Read)	Stores ON/OFF values for inputs
30001 - 33000	D0 - 02999	Input Register	Read-only	04 (Read)	Stores analog input values
40001 - 43000	D3000 - 05999	Holding Register	Read/Write	03 (Read) / 06, 16 (Write)	Stores analog output and parameters

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6. Working with I/O

• Example input wiring connection

  
• Example output wiring connection

  

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7. Safety and Maintenance

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Training Topics for Basic PLC

prepare for trainee

• Notebook for training.

• install gx-work2.

• install ch340 driver. Download

• drawing training kit. Download

Why need choose PLC.

1.Ladder Logic Basics.

No.	Symbol	Description
1		Contact Normally Open
2		Contact Normally Close
3		Coil
4		Timer
5		Counter
6		Instruction Set

How to understand ladder logic.

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2. Programming with GX-WORK 2.

2.1 new project and test connection

2.2 download ladder logic to plc.

2.3 upload ladder logic from plc.

2.4 monitoring and modify value.

3. PLC Basic Programming Exercises.

3.1 Create simple ladder logic program to turn on an output when a switch is pressed

    Objective : Basic Ladder Logic and applie.
    - Switch Selector X3 make Y0 ON.
    - Press Button X1 make Y2 ON.
    - Press Button X2 make Y3 ON.

3.2 Write program to self-holding circuit a relay using a start and stop button.

    Objective : Convert Electrical circuit to ladder logic.
    - Self hold circuit.
    - interlock coil between Y4 and Y5 for protect load short circuit.
    - Press button X1 make Y4 ON.
    - Press button X2 make Y5 ON.
    - Press button X0 for stop process

3.3 Write timer to turn off relay automatically after a preset time.

    Objective : Convert Electrical circuit to ladder logic.
    - Switch X3 for start process.
    - When process start Y3 and Y4 on-off swap indcator inverval 1 sec (Timer1-Timer2)

3.4 Write program to counter the number of cycle.

    Objective : use timer and counter on ladder logic.
    - Press button X1 for reset counter C0.
    - When C0 on stop process.

3.5 Convert Electrical function process to ladder logic process.

    Objective : Convert Electrical circuit to ladder logic.
    - operation 2 mode 
      - 1.semi auto  
      - 2.auto

4. Communication Protocols - Configuring RS-232 and RS-485 - Setting up Modbus communication

1. Web-Based Configuration

   • Connecting via Wi-Fi

   • Remote setup and diagnostics

2. Troubleshooting & Maintenance

   • Common PLC issues and solutions

   • Firmware updates and system diagnostics

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