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NORVI X-DI8 (Extension Modul f. Norvi X, 8 Digital Inputs)

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NORVI X-DI8 (Extension Modul f. Norvi X, 8 Digital Inputs)
  • Norvi X !
  • 8x Digital Inputs !
  • Extension !

  • 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
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  • 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


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.



Range of product NORVI X
Product type /
Model		 Expansion Module f. NORVI X Series
NORVI X-DI8
Certifications EN 61131-2:2007
EN 61010-1:2010+A1:2019
EN IEC 61010-2-201:2018
2014/30/EU- Electromagnetic Compatibility (EMC)
Annex III, Part B, Module C
Dimmensions 81 x 104 x 23 mm
Mounting DIN RAIL
Terminal Type Push-in terminal
Envirement IP20
Operating altitude: 0-2000 meters
Operating Temperature: -10 ... - +85°C
Shock resistance: 15 gn for 11ms
Resistance to electrostatic discharge: 4kV on contact / 8kV on air
Supply Voltage (V) 24V / 80mA
I/O Specification  
Number of Inputs 8 Digital Inputs
Input Type Isolated 24V DC
Input Voltage Range 0-30 V DC
Logic Low (OFF) < 5 V DC
Logic High (ON) > 15 V DC
Input Impedance ~ 7 mA @ 24V
Protection Over-voltage, Reverse Polarity, ESD Protected
Opto-coupler isolation per channel
Status Indicators 8x LED Input indicators
Communication Bus / Type Internal Expansion Bus
Push-in Terminal Block
Data sheet Download (PDF)
Data sheet Print view
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