> ## Documentation Index
> Fetch the complete documentation index at: https://wiki.codeandcompile.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Code and Compile Wiki

> Everything you need to actually build automation- FREE, in one place.

![Code and Compile Wiki: free resources for industrial automation and IIoT](https://mintcdn.com/code-and-compile/RY2wVq_3u9AOY4F9/images/wiki-banner-light-v2.png?fit=max\&auto=format\&n=RY2wVq_3u9AOY4F9\&q=85\&s=261383590774d8c238c4dd318d2662c3)

![Code and Compile Wiki: free resources for industrial automation and IIoT](https://mintcdn.com/code-and-compile/NObQt8NqM3UOPrbq/images/wiki-banner-mobile-light.png?fit=max\&auto=format\&n=NObQt8NqM3UOPrbq\&q=85\&s=9b963c325c91427fe2103a7fe37dddb0)

## Welcome aboard!

This is the companion knowledge base to everything I do at **Code and Compile**. Whether you found me through a YouTube video, a course, or a random Google search at 2 AM trying to fix a PLC, you're in the right place.

## Here you'll find, all **100% free:**

* **Product reviews**: Hands-on breakdowns of industrial automation and IIoT devices, with the honest details datasheets leave out
* **Course resources**: The supporting material, guides, and references for my e-learning courses, so you can follow along and practice
* **PLC downloads**: Ready-to-use project files, sample programs, and source code
* **Attachments & extras**: Wiring diagrams, presentations, configs, and everything else you need to recreate what you see in the videos

### No paywall on the wiki. No sign-up gate. Just open a topic and start building.

> [!NOTE]
>
> **Heads up:** this is a beta version. Content is published from Code and Compile and may contain the occasional error, if you spot one, drop me a line at [info@codeandcompile.com](mailto:info@codeandcompile.com) and I'll fix it.

## Start here

> [card] [Course resources](https://wiki.codeandcompile.com/resources/based-on-courses.md)
>
> Downloads, presentations and PLC projects for every course.

> [card] [Product reviews](https://wiki.codeandcompile.com/product-reviews/smart-devices.md)
>
> Hands-on reviews of automation and IIoT devices and platforms.

> [card] [Software downloads](https://wiki.codeandcompile.com/resources/hardware-and-software.md)
>
> The PLC, HMI and IIoT software used in the videos.

## Free engineering tools

> [card] [PID tuning simulator](https://wiki.codeandcompile.com/tools/pid-simulator.md)
>
> Tune Kp, Ti and Td on a simulated process and watch overshoot and settling time live.

> [card] [Bit and number converter](https://wiki.codeandcompile.com/tools/bit-converter.md)
>
> Decimal, hex, binary and BCD with clickable bits and Siemens M byte.bit addresses.

> [card] [Drive control word builder](https://wiki.codeandcompile.com/tools/profidrive-control-word.md)
>
> Build PROFIdrive STW1 words like 047F, decode ZSW1 and scale the speed setpoint.

> [card] [Modbus RTU frame builder](https://wiki.codeandcompile.com/tools/modbus-rtu-frame-builder.md)
>
> Build RTU and TCP requests with the correct CRC-16, or check a captured frame.

[See all 7 tools →](https://wiki.codeandcompile.com/tools.md)

> [card] [Get my courses – 20% off](https://wiki.codeandcompile.com/who-am-i/get-my-courses-20-off.md)
>
> Use code **WIKI** at checkout on codeandcompile.com.


## Related topics

- [Code and Compile PRO: Learning Paths](https://wiki.codeandcompile.com/resources/yearly-subscription-guideline.md)
- [Get my courses – 20% off](https://wiki.codeandcompile.com/who-am-i/get-my-courses-20-off.md)
- [Delta Electronics](https://wiki.codeandcompile.com/factory-automation/plc/delta-electronics/index.md)
- [Simumatik](https://wiki.codeandcompile.com/factory-automation/digital-twin/simumatik/index.md)
- [Codesys](https://wiki.codeandcompile.com/factory-automation/plc/codesys/index.md)


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