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The Only Factory Authorized 90-70 Repair Center in the World

Allen Bradley Technical Support

In over 15 years of experience with PLC systems, Qualitrol International has supported thousands of PLC installations. We have amassed a wealth if technical information to help you with system configuration and troubleshooting problems.

With our combination of Allen-Bradley repair services and remanufactured parts, Qualitrol International will keep your Allen-Bradley PLC system running for years to come.

We have created a list of Frequently Asked Questions (FAQ) regarding your Allen-Bradley PLC systems.

If you need additional technical assistance, you can call our Engineers at 1-800-784-9385, email us your technical support question at, or click here to chat live with one of our engineers.

  • Allen-Bradley Programming Software
  • Allen-Bradley Networks
  • Allen-Bradley I/O Platforms
  • Allen-Bradley Operator Interface Products
Allen-Bradley Windows Programmer

Allen-Bradley Windows Programmer

Now get a small, Windows-based portable PLC programmer that allows you to run any DOS-based PLC programming software, including the Allen-Bradley programming software. No installation needed – just power-up and go!

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Allen-Bradley PLC Videos

Allen-Bradley PLC Videos

Now visit the Allen-Bradley PLC video section for all your "How-To" and instructional needs.

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For additional software tools for your Allen-Bradley PLCs, go to Software Toolbox.