NORVI X-DI8

The NORVI X-DI8 is an 8-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 PCA9538 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 DI8 modules can be connected on the same bus, providing a total of 32 digital inputs per controller.

Designed for modular scalability and DIN-rail installation, the NORVI X-DI8 ensures reliable, noise-immune, and space-efficient input expansion for industrial and automation systems.

Product Features

• 8 × Optically isolated 24 V DC digital inputs
• Bi-directional optocouplers — support both sourcing (PNP) and sinking (NPN) inputs
• One common terminal for all eight inputs
• PCA9538 I²C port expander with 4 selectable addresses
• Up to 4 DI8 modules per controller (32 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