As equipment and manufacturing facilities continue to evolve on a daily basis, the series enables high-speed, high-accuracy and large volume data processing and machine control.

The MELSEC-Q Series has gained continuous supports since its release in 1999, helping to promote factory automation and support economic growth.
High-speed and highly functional MELSEC-QnU Series was released in 2014. High quality and stable modules for versatile applications are widely used in many industries.

The MELSEC-Q Series provides an open and seamless network environment integrating the following different level of automation networks: CC-Link IE; high-speed and large capacity Ethernet-based integrated open network that connects shop floor and IT system as the core of e-F@ctory, CC-Link; SEMI certified global standard network originating from Japan and Asia, and AnyWire; sensor level distributed control network.