The IP20 compact I/O modules are available in two series: the wide-form FB20 series and the book-form FV20 series. The FB20 series features a horizontal integrated design with standard 35mm DIN rail mounting. It supports combinations of up to 32 digital inputs and outputs, is compatible with multiple mainstream Ethernet bus protocols, and uses plug-and-play terminal blocks for both I/O and equipotential power supply connections.

The FV20 series, on the other hand, adopts a vertical integrated design, optimizing space usage within control cabinets. Like the FB20 series, it offers flexible configurations of up to 32 digital inputs and outputs, supports various Ethernet bus protocols, and features plug-in terminal block connections for easy installation and maintenance.