Products
Base unit
![Base](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_t002.jpg)
Used for installing various modules such as power supply, CPU and I/O. A selection of base units enable varying system sizes to be realized.
Main base
Main base unit for installing MELSEC iQ-R Series modules.
![Main base](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_s004.jpg)
Extension base
Extension base unit used for extending the main base unit, providing further available I/O slots
![Extension base](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_s005.jpg)
R-Q Extension base
Extension base unit for mounting MELSEC-Q Series modules.
![R-Q Extension base](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_s006.jpg)
Extension cable
Cable for connecting the main and extension bases together.
![Extension cable](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_s007.jpg)
Option
Further products related to base units are available, such as DIN rails and blank covers.
![Option](/fa/th_en/products/cnt/plcr/items/img/01lp4plcr_s008.jpg)