Glossary · Automation fundamentals, platforms and components
R Series (MELSEC iQ-R)
Also known as: MELSEC iQ-R Series, iQ-R
German: R-Serie
The MELSEC iQ-R Series is a modular PLC and automation controller platform by Mitsubishi Electric, with CPU modules for sequence, motion, process, safety and C-language control on a common backplane, engineered with the GX Works3 software.
- Automation components
- Vendor product
In one sentence
The MELSEC iQ-R Series is Mitsubishi Electric's modular controller platform with PLC, motion, process and safety CPUs, engineered in GX Works3.
Example
A press line uses an iQ-R rack with a PLC CPU, a motion CPU for the servo axes and a safety CPU for the light curtains.
How it applies
- Engineering: A modular platform lets one rack combine different CPU and I/O module types. Project data and module parameters are handled in the vendor's engineering tool.
- Maintenance: Record the firmware and hardware versions of every module; replacement modules may need a firmware check before use.
- Documentation: Manuals for machines built on the platform should name the exact controller models and point to the vendor's manuals for module-level details instead of copying them. Keep the controller project archived with the machine's documentation version. Spare part lists should include full order codes and minimum firmware versions for replacement modules.
Keep in mind: Product names, model ranges and features change. Check module types, software versions and safety ratings against Mitsubishi Electric's current documentation.