Privacy Policy

Last updated June 18, 2026

This Privacy Policy explains how PLCDocs (plcprogrammingblog.com) collects, uses, and protects information when you visit our website. PLCDocs is a free resource of tutorials and browser-based tools for PLC programming and industrial automation. By using the site, you agree to the practices described below.

Information we collect

Information you provide directly. If you subscribe to our newsletter, we collect your email address. If you use a contact form, we collect the name, email address, and message you submit.

Information collected automatically. Like most websites, we collect standard usage data such as the pages you view, your browser and device type, the page that referred you, and an approximate, city-level location derived from your IP address. This is gathered through cookies and similar technologies.

Our tools do not collect your data. The Analog Scaling Calculator, the Modbus Register Calculator, and our other tools run entirely in your browser. The values you enter are processed on your device and are never uploaded to or stored on our servers.

How we use information

  • Operate, maintain, and improve the site and its content.
  • Send the newsletter you requested, and let you unsubscribe at any time.
  • Respond to messages you send us.
  • Understand how the site is used through aggregated analytics.
  • Display advertising that helps keep the site free.
  • Protect the site against abuse and keep it secure.

Cookies and tracking

We use cookies and similar technologies for analytics and advertising. For a full breakdown of the cookies we use and how to control them, see our Cookie Policy.

Third-party services

We rely on trusted third parties that may process limited data on our behalf: Google Analytics and Google Tag Manager for traffic measurement, Microsoft Clarity for anonymized usage and session analytics, and Google AdSense for advertising. Each provider processes data under its own privacy policy.

Legal bases for processing (EEA and UK)

Where the GDPR applies, we process personal data on the following bases: your consent for analytics, advertising cookies, and the newsletter; our legitimate interests in securing and improving the site; and, where relevant, compliance with legal obligations. You may withdraw consent at any time.

Your privacy rights

Depending on where you live, you may have the right to access, correct, delete, or export your personal data, to restrict or object to its processing, and to withdraw consent. Residents of California have rights under the CCPA, including the right to know what data is collected and to opt out of its sale. We do not sell personal data. To exercise any of these rights, contact us using the details below.

Data retention

We keep newsletter and contact data only as long as needed for the purpose it was collected or as required by law. Aggregated analytics data is retained according to each provider default settings.

Data security

We take reasonable technical and organizational measures to protect information against unauthorized access, loss, or misuse. No method of transmission over the internet is completely secure, however, and we cannot guarantee absolute security.

International transfers

Our service providers may process data in countries outside your own. Where required, such transfers are covered by appropriate safeguards such as the European Commission standard contractual clauses.

Children privacy

This site is intended for a professional and technical audience and is not directed to children. We do not knowingly collect personal data from anyone under the age of 16. If you believe a child has provided us data, contact us and we will remove it.

Changes to this policy

We may update this Privacy Policy from time to time. The latest version will always be posted on this page with a revised date above.

Contact us

If you have questions about this Privacy Policy or your data, email us at support@plcprogrammingblog.com or use our contact page.

By using PLCDocs, you consent to the collection and use of information as described in this policy.