NORVI X-DI16 – DATASHEET

The NORVI X-DI16 is a 16-channel digital input expansion module for the NORVI X Modular Controller. It provides protected 24 V DC digital inputs for industrial switches, sensors, and logic-level signals.

At its core, the module integrates a PCA9555 I²C port expander, allowing the NORVI X CPU to read input states efficiently via the internal expansion bus. With four selectable I²C addresses, up to four DI16 modules can be connected on the same bus, providing a total of 64 digital inputs per controller.

Designed for modular scalability and DIN-rail mounting, the NORVI X-DI16 delivers reliable, noise-immune, and space-efficient 16-channel input expansion, making it ideal for industrial automation and control applications.

Product Features #

• 16 × Optically isolated 24 V DC digital inputs
• Bi-directional optocouplers – support both sourcing (PNP) and sinking (NPN) inputs
• One common terminal for all sixteen inputs
• PCA9555 I²C port expander with 8 selectable addresses
• Up to 8 DI6 modules per controller (128 inputs max)
• Built-in over-voltage and reverse-polarity protection
• Status LED indicators for each input channel
• Plug-and-play connection to NORVI X CPU module via expansion bus
• DIN-rail mountable industrial enclosure

Applications #

• High-density machine and process signal monitoring
• Large-scale PLC and control system I/O expansion
• Universal NPN/PNP sensor interfacing
• High-speed pulse and encoder signal capture

Product Block Diagram #

Main #

Complementary #

Mechanical Properties #

Environment #

Electrical Characteristics #

Grid Powered Devices

I/O Specifications #

Terminal Configuration #

GPIO Utilization #

I2C Address Selection #

DIP 3	DIP 2	DIP 1	Address
OFF	OFF	OFF	0x27
OFF	OFF	ON	0x26
OFF	ON	OFF	0x25
OFF	ON	ON	0x24
ON	OFF	OFF	0x23
ON	OFF	ON	0x22
ON	ON	OFF	0x21
ON	ON	ON	0x20

Expansion Port #

Utilized GPIO Connections are highlighted in Green. They cannot be used for any other purpose with this module connected.