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AnS/QnAS Platforms > iQ Platform

A/QnA and AnS/QnAS platforms have been Mitsubishi Electric's main control technology for many years. However, these technologies are now obsolete as many electrical components have reached their end of life.

For that reason, already some years ago Mitsubishi Electric with its iQ Platform offered a successor technology, now being a leading control solution providing faster and more reliable controllers than before. On top of that iQ Platform provides many modern features that allow our customers to meet the requirements of the digitalization era.

Mitsubishi Electric provides a set of software and hardware tools to support the process of transition to the new technology, including special adapters to keep the existing wiring as well as PLC program converters.

Transition process

  • Identify the install base of obsolete technology
  • Identify the communication network used. It might be possible to make the transition in stages where new controllers communicate with old ones.
  • Identify system requirements and available budget
  • Contact Mitsubishi Electric’s technical support if needed


AAnS iQ-R Upgrade Tool (pdf)

Programmable Controller Upgrade Tool General Catalog (pdf)

MELSEC iQ-R Series Upgrade Tool (pdf)

MELSEC A to Q Series Upgrade tool (pdf)


Transition MELSEC A to Q series (ZIP)

MELSEC-AQnA Small type to iQ-R Series Handbook (PDF)

MELSEC-AQnA Large type to iQ-R Series Handbook (PDF)

Conversion support tool

The conversion support tool minimizes the efforts when migrating to Q/iQ-R technology. Simply change the PLC type in your project and the tool will highlight differences between two programs. It also provides guidance on how to complete the conversion.

Conversion support tool (ZIP)

Other supporting data


How to replace a MELSEC A-series PLC with MELSEC Q series using a base adapter (MP4)

How to replace a MELSEC A-series PLC with MELSEC Q series using a Q type base unit (MP4)


For more technical details about the AnS and QnAS Platforms, please find the respective manuals in our Download Centre: