How to Program Delta PLC: A Complete Step-by-Step Guide

Programming a Delta PLC (Programmable Logic Controller) is one of the most important skills for automation engineers and technicians. Delta PLCs are widely used in industrial automation, machine control, and process management due to their high performance, reliability, and easy-to-use software. Whether you’re a beginner or a professional, learning how to program Delta PLCs will help you design efficient automation systems with precision and control.

In this detailed guide, we’ll explain how to program Delta PLC step by step, which software tools you need, and how to connect, simulate, and test your programs. We’ll also share links to useful PLC software that you can download directly from our website – plcunlock.com, your trusted source for PLC, HMI, VFD, and Servo Drive unlocked software.

What Is a Delta PLC?

A Delta PLC is a programmable controller manufactured by Delta Electronics, one of the leading automation solution providers in the world. It is designed to automate complex industrial processes with high-speed logic control, motion control, and communication capabilities.

Delta PLCs are available in several series such as:

• DVP Series (most popular and widely used)
  AS Series (advanced motion and communication features)
• AH Series (high-end modular type for complex systems)

Each series is designed to handle specific applications – from simple I/O control to advanced servo motion control.

Delta PLC Programming Software You Need

To program Delta PLCs, you will need Delta’s official programming tools. The most commonly used are:

1. WPLSoft

• Used for: Delta DVP Series PLCs
• Features: Ladder logic programming, simulation, and communication setup
• Download from: WPLSoft Free Download
• Best for: Beginners learning PLC programming and testing simple automation systems.

2. ISPSoft

• Used for: Delta AS and AH Series PLCs
• Features: Advanced programming in Ladder, Function Block, and Structured Text languages.
• Download from: ISPSoft Full Version Free Download
• Best for: Advanced users who require complex motion control and multi-tasking.

3. DOPSoft (for HMI Programming)

• Used for: Designing Delta HMI (Human Machine Interface) screens.
• Features: Easy drag-and-drop interface, PLC communication setup, and screen simulation.
• Download from: DOPSoft V4.00.14 Free Download
• Best for: Integrating PLC programs with HMI systems for real-time monitoring and control.

Tip: You can find all these Delta software tools, including activation licenses and unlocked versions, at plcunlock.com – your one-stop solution for PLC, HMI, and automation software downloads.

Step-by-Step Guide: How to Program a Delta PLC

Let’s go through the complete process of programming a Delta PLC using WPLSoft, which is perfect for most Delta DVP Series PLCs.

Step 1: Install WPLSoft on Your Computer

1. Download WPLSoft from plcunlock.com.
   Run the setup file and follow the installation wizard.
2. Once installed, open the software and select New Project.
3. Choose your PLC model (for example: DVP14SS2 or DVP32ES2).

Step 2: Configure the Communication Settings

Before writing the program, you need to establish a communication link between the PLC and your computer.

1. Connect the Delta PLC to your PC via RS-232, USB, or Ethernet cable.
   
2. In WPLSoft, click Options → Communication Settings.
   
3. Select the correct COM port or IP address.
   
4. Click Test Connection to verify successful communication.

Once connected, you can upload/download programs easily between your PC and PLC.

Step 3: Create the Ladder Logic Program

Ladder logic is the most common method used for PLC programming because it visually resembles electrical relay logic.

Example: Let’s create a simple Start/Stop Motor Control Program.

1. Use Normally Open (NO) and Normally Closed (NC) contacts for the start and stop buttons.
2. Add an Output Coil (Y0) for the motor output.
3. Create a self-holding circuit using an auxiliary contact (M0 or Y0).

In WPLSoft:

• Input X0 → Start button
• Input X1 → Stop button
• Output Y0 → Motor

This program starts the motor when you press the start button and stops it when you press the stop button.

Step 4: Compile and Check for Errors

After writing your ladder logic, click Compile or press F7 to check for syntax or logic errors.
WPLSoft will highlight any issues, making it easy to debug before downloading to the PLC.

Step 5: Download the Program to the PLC

1. Switch the PLC to STOP Mode.
2. Click Online → Download to PLC.
3. Once the download is complete, switch to RUN Mode.

Now your Delta PLC will start executing the program automatically.

Step 6: Monitor and Simulate

WPLSoft includes a built-in simulation and monitoring tool that lets you test your program without connecting to the actual hardware.

1. Go to Simulation Mode.
2. Force ON/OFF inputs (X0, X1, etc.) to see how outputs react.
3. Monitor register values and timers in real-time.

Simulation is a powerful feature for debugging and learning Delta PLC programming without risk.

Step 7: Connect Delta HMI Using DOPSoft

To display and control your PLC operations visually, connect a Delta HMI to your PLC.

1. Open DOPSoft.
2. Create a new HMI project and select your model (e.g., DOP-B07S411).
3. Set communication protocol as “Delta DVP Series”.
   
4. Design buttons, lamps, and numeric displays.
   
5. Download the HMI project to your HMI panel.

This allows operators to control and monitor processes directly through the HMI screen.

Troubleshooting Delta PLC Programming

While programming Delta PLCs, you might encounter common issues such as:

• Communication failure: Check cable connection and COM port settings.
  
• PLC not in RUN mode: Switch the key or software setting to RUN.
  
• Program not executing properly: Recheck ladder logic and timer settings.
  
• HMI not connecting: Confirm that both PLC and HMI share the same baud rate and communication format.

You can easily fix these issues by reviewing the configuration in WPLSoft or DOPSoft.

Other Popular PLC & HMI Software You Can Download

At plcunlock.com, you’ll find a complete collection of PLC and HMI software for all major automation brands. Here are some popular ones to explore:

• Siemens: Download TIA Portal V17 Full Version
  
• Mitsubishi: GX Works2 / GX Developer Free Download
  
• Omron: CX-Programmer and CX-Designer Software
  
• Allen-Bradley: RSLogix 5000 & Studio 5000 Download
  
• Pro-face: GP-Pro EX HMI Software Free Download
  
• Delta: WPLSoft, ISPSoft, DOPSoft Latest Versions
  
• Weintek: EasyBuilder Pro Free Download
  
• Fatek: WinProLadder PLC Software Download
  
• Fuji Electric: Micrex-SX PLC Software Free
  
• ABB, LG, Exor, Idec, Koyo, Vigor, Inovance, Hitech – all available at plcunlock.com

These links provide you access to the latest unlocked, full-version software packages with easy installation and activation.

Why Choose PLC Unlock for Delta PLC Software?

PLC Unlock is a trusted e-commerce platform dedicated to industrial automation software. Here’s why thousands of engineers prefer us:

• Wide Software Collection: We offer all major PLC, HMI, VFD, and Servo Drive software.
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• Global Support: Our software supports Windows 7, 8, 10, and 11.
• Expert Help: Our technical team is always ready to assist with installation or activation.

From Siemens TIA Portal to Delta ISPSoft, we provide everything you need to succeed in industrial automation programming.

Conclusion

Learning how to program Delta PLC is an essential step for anyone in industrial automation. With WPLSoft and ISPSoft, Delta makes PLC programming simple, flexible, and reliable. Once you understand ladder logic, communication setup, and HMI integration, you can automate almost any process efficiently.

If you’re ready to start programming or upgrading your PLC software tools, visit plcunlock.com today. You’ll find unlocked versions, lifetime licenses, and expert guidance for Delta, Siemens, Omron, Mitsubishi, and many other automation brands – all in one place.

Start programming Delta PLC today and take your automation skills to the next level!