Project #1: Standard Conveyor Sequence

1️⃣ The Logic: Clean Ladder (LAD) programming with a focus on reliable latching.
2️⃣ The Strategy: A structured GRAFCET approach for state management.
3️⃣ The Result: Seamless integration between the PLC and the 3D environment.

Technical Stack

Controller: Siemens S7-1200 / TIA Portal V18

Languages: Ladder Logic (LD) for Interlocks, Function Block Diagram (FBD) for Scaling.

Communication: PROFINET (Remote I/O) & Modbus TCP (DCS Integration).

3D Visualization | Factory I/O

GRAFCET CONVOYER (START/ RESET)

LADDER PROGRAM (TIA V19)

3D Visualization | Factory I/O

Seeing the logic translate into 3D motion is the best way to validate code before deployment.

...

Project #2: Analog Speed Control with S7-1200

Continuing my series of Simple Automation Projects, today I’m focusing on Analog VFD Control using Siemens TIA Portal.
The goal for Project #2 is to move beyond simple ON/OFF logic and focus on precision speed regulation. By utilizing SCALE_X and NORM_X function blocks, I’ve mapped a potentiometer's analog signal to control motor frequency via a VFD.
🛠️ Technical Highlights:
Hardware: Siemens S7-1200 PLC.
Software: TIA Portal V19 + PLCSIM for virtual commissioning.
Logic: Implemented a robust Start/Reset sequence and precise analog signal processing for smooth motor ramping.
Developing these fundamental building blocks is key to mastering complex industrial systems. It’s all about creating reliable, scalable logic from the ground up!

Analog Speed Control with S7-1200

🏗️ Building a Dynamic Conveyor System: Factory I/O & PLCSIM Integration

Digital twinning and virtual commissioning are essential for reducing downtime and preventing hardware damage in real-world industrial environments.

Watch the full design process and logic mapping in the video below! 👇

Tutorial: Integrating Factory I/O with S7-PLCSIM for VFD Conveyor Control