The NORVI X-AI4 is a 4 x Analog Inputs Expansion module designed for the NORVI X modular controller platform.
It provides four analog input channels suitable for industrial monitoring and measurement applications.
The inputs are conditioned using precision signal amplifiers and digitized through an ADS1115 I²C ADC, enabling accurate data acquisition with minimal MCU I/O usage.
Product Features #
- 4 × Analog Input channels
- High-resolution ADC (16-bit)
- I²C communication interface
- Suitable for industrial signal monitoring
- Compact design for expansion systems
- Designed for NORVI X modular architecture
Applications #
- Industrial process monitoring
- Current and voltage measurement systems
- PLC and industrial controller expansion
- Factory automation and control panels
Product Block Diagram #
Main #
| Range of Product | NORVI X |
| Product type | Expansion Module for NORVI X Series |
| 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 |
| Rated supply voltage | 24V DC |
Complementary #
| Product Part Numbers | NORVI X-AI4 |
Mechanical Properties #
| Enclosure | NORVI X-N1 |
| Mounting / Installation Method | DIN RAIL |
| Terminal Type | Push-in terminal |
| Terminal Arrangement | Front |
| Length | 81.00 mm |
| Height | 104.00 mm |
| Width | 23.50 mm |
Environment #
| IP degree of protection | IP20 |
| Operating altitude | 0 – 2000 meters |
| Operating Temperature | –10 … +85° C (14…185 °F) |
| Storage altitude | 0 – 3000 meters |
| Shock resistance | 15 gn for 11ms |
| Resistance to electrostatic discharge | 4kV on contact 8kV on air |
| Resistance to electromagnetic fields | 10 V/m (80 MHz …… 1GHz) 3 V/m (1.4 MHz …… 2 GHz) 1 V/m (2 MHz …… 3 GHz) |
Electrical Characteristics #
Grid Powered Devices #
| Rated Supply Voltage (V) | 24V DC |
| Current Consumption (mA) | 80mA @ 24VDC |
Analog Inputs #
| Number of Analog Inputs | 4 |
| Analog Input Measurement Range | 4 – 20mA / 0 – 20mA |
| Analog to Digital Converter (ADC) | ADS1115 |
| Analog to Digital Converter (ADC) Resolution | 16-bit |
| Analog to Digital Converter (ADC) Communication | I2C |
| ADC Power Supply | 3.3V (AV3.3) |
Terminal Configuration #
| No. | Terminal | Description |
|---|---|---|
| 1 | AIN1 | Analog Input Channel 1 |
| 2 | AIN2 | Analog Input Channel 2 |
| 3 | AIN3 | Analog Input Channel 3 |
| 4 | AIN4 | Analog Input Channel 4 |
| 5 | GND | Ground |
GPIO Utilization #
| Utilization | Connection to CPU |
|---|---|
| SCL | IO9 |
| SDA | IO8 |
I2C Address Selection #
| DIP 1 | DIP 2 | DIP 3 | DIP 4 | Address |
| ON | OFF | OFF | OFF | 0x49 |
| OFF | ON | OFF | OFF | 0x4B |
| OFF | OFF | ON | OFF | 0x4A |
| OFF | OFF | OFF | ON | 0x48 |
Expansion Port #
Utilized GPIO Connections are highlighted in Green. They cannot be used for any other purpose with this module connected.
| PIN INDEX | Purpose | GPIO | SOURCE |
|---|---|---|---|
| 1 | MOSI | IO35 | ESP32-S3 |
| 2 | MISO | IO37 | ESP32-S3 |
| 3 | SCLK | IO36 | ESP32-S3 |
| 4 | SCL | IO9 | ESP32-S3 |
| 5 | SDA | IO8 | ESP32-S3 |
| 6 | RX1 | IO18 | ESP32-S3 |
| 7 | TX1 | IO17 | ESP32-S3 |
| 8 | P1_2 | ESP32-S3 | |
| 9 | P1_1 | ESP32-S3 | |
| 10 | GND | —- | |
| 11 | GND | —- | |
| 12 | CS1 | P1_0 | PCA9539 I2C Address 0x75 |
| 13 | CS2 | P0_7 | PCA9539 I2C Address 0x75 |
| 14 | CS3 | P0_6 | PCA9539 I2C Address 0x75 |
| 15 | CS4 | P0_5 | PCA9539 I2C Address 0x75 |
| 16 | IO1 | IO1 | ESP32-S3 |
| 17 | IO2 | IO2 | ESP32-S3 |
| 18 | IO4 | IO4 | ESP32-S3 |
| 19 | IO5 | IO5 | ESP32-S3 |
| 20 | IO6 | IO6 | ESP32-S3 |
| 21 | IO7 | IO7 | ESP32-S3 |
| 22 | IO10 | IO10 | ESP32-S3 |
| 23 | IO11 | IO11 | ESP32-S3 |
| 24 | IO12 | IO12 | ESP32-S3 |
| 25 | IO13 | IO13 | ESP32-S3 |
| 26 | IO14 | IO14 | ESP32-S3 |
| 27 | IO15 | IO15 | ESP32-S3 |
| 28 | IO16 | IO16 | ESP32-S3 |
| 29 | P1_1 | P1_1 | PCA9539 I2C Address 0x75 |
| 30 | P1_2 | P1_2 | PCA9539 I2C Address 0x75 |
| 31 | IO21 | IO21 | ESP32-S3 |
| 32 | P1_3 | P1_3 | PCA9539 I2C Address 0x75 |
| 33 | P1_4 | P1_4 | PCA9539 I2C Address 0x75 |
| 34 | P1_5 | P1_5 | PCA9539 I2C Address 0x75 |
| 35 | IO39 | IO39 | ESP32-S3 |
| 36 | IO40 | IO40 | ESP32-S3 |
| 37 | 5V | 5V | |
| 38 | GND | GND | |
| 39 | GND | GND | |
| 40 | 24V | 24V |
