Overview #
The NORVI X-T4 expands the NORVI X modular controller platform with four analog input channels dedicated to temperature sensing. Each channel interfaces with NTC thermistors through a 16-bit ADS1115 ADC, delivering accurate and stable readings across varying thermal conditions.
The module connects directly to the NORVI X backplane, draws power from the main controller, and requires no external supply.
Product Features #
- 4 analog input channels for NTC thermistor-based temperature sensing
- High-resolution 16-bit ADC
- I2C communication interface
- Suitable for multi-zone temperature monitoring
- Compact design for expansion systems
- Designed for the NORVI X modular architecture
Applications #
- Multi-zone industrial temperature monitoring
- HVAC and cold storage temperature control
- Industrial oven and furnace process monitoring
- PLC and industrial controller expansion
- Factory automation and control panels
General Specifications #
| Range of Product | NORVI X |
| Product Type | Expansion Module for NORVI X Series |
| Product Part Number | NORVI X-T4 |
| Rated Supply Voltage | 24V DC |
| Current Consumption | 40mA @ 24VDC |
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
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 | 23.00 mm |
Environment #
| IP Degree of Protection | IP20 |
| Operating Altitude | 0 – 2000 meters |
| Operating Temperature | -40°C to +85°C (-40°F to 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 – 1 GHz) 3 V/m (1.4 MHz – 2 GHz) 1 V/m (2 MHz – 3 GHz) |
Thermistor Inputs #
| Number of Thermistor Inputs | 4 |
| Analog to Digital Converter (ADC) | ADS1115 |
| Thermistor Type | NTC (Negative Temperature Coefficient) |
| Nominal Resistance (R25) | 10 kΩ at 25°C |
| B-Value | Approx. 3950 K |
| Resistance Tolerance | ±1% to ±3% |
| B-Value Tolerance | ±1% to ±3% |
| Operating Temperature Range | At least -40°C to +125°C |
| Sensor Configuration | 2-wire NTC thermistor |
| Recommended Accuracy | High-stability / precision grade |
| ADC Resolution | 16-bit |
| ADC Communication | I2C |
| ADC Power Supply | 3.3V |
Terminal Configuration #
| No. | Terminal | Description |
|---|---|---|
| 1 | TM1+ | Positive Input – Channel 1 |
| 2 | TM1- | Negative Input – Channel 1 |
| 3 | TM2+ | Positive Input – Channel 2 |
| 4 | TM2- | Negative Input – Channel 2 |
| 5 | TM3+ | Positive Input – Channel 3 |
| 6 | TM3- | Negative Input – Channel 3 |
| 7 | TM4+ | Positive Input – Channel 4 |
| 8 | TM4- | Negative Input – Channel 4 |
| 9 | AGND | Analog Ground |
GPIO Utilization #
| Utilization | Connection to CPU |
|---|---|
| SCL | IO9 |
| SDA | IO8 |
I2C Address Selection #
| 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. These connections cannot be used for any other purpose while the NORVI X-T4 is connected.
| PIN INDEX | Purpose | GPIO | SOURCE |
|---|---|---|---|
| 1 | MOSI | IO11 | ESP32-S3 |
| 2 | MISO | IO13 | |
| 3 | SCLK | IO12 | |
| 4 | GND | —- | |
| 5 | SCL | IO9 | |
| 6 | SDA | IO8 | |
| 7 | GND | —- | |
| 8 | RX1 | IO18 | |
| 9 | TX1 | IO17 | |
| 10 | GND | —- | |
| 11 | D+ | —- | |
| 12 | D- | —- | |
| 13 | GND | —- | |
| 14 | CS1 | P1_0 | PCA9539 I2C Address 0x75 |
| 15 | CS2 | P0_7 | |
| 16 | CS3 | P0_6 | |
| 17 | CS4 | P0_5 | |
| 18 | IO1 | IO1 | ESP32-S3 |
| 19 | IO2 | IO2 | |
| 20 | IO4 | IO4 | |
| 21 | IO5 | IO5 | |
| 22 | IO6 | IO6 | |
| 23 | IO7 | IO7 | |
| 24 | IO10 | IO10 | |
| 25 | IO11 | IO35 | |
| 26 | IO12 | IO41 | |
| 27 | IO13 | IO37 | |
| 28 | IO14 | IO14 | |
| 29 | RS485_TX | IO15 | |
| 30 | GND | —- | |
| 31 | GND | —- | |
| 32 | RS485_RX | IO16 | |
| 33 | P1_1 | P1_1 | PCA9539 I2C Address 0x75 |
| 34 | P1_2 | P1_2 | |
| 35 | IO21 | IO21 | ESP32-S3 |
| 36 | GND | —- | |
| 37 | GND | —- | |
| 38 | P1_3 | P1_3 | PCA9539 I2C Address 0x75 |
| 39 | P1_4 | P1_4 | |
| 40 | P1_5 | P1_5 | |
| 41 | IO39 | IO39 | ESP32-S3 |
| 42 | IO40 | IO40 | |
| 43 | NC | —- | |
| 44 | NC | —- | |
| 45 | NC | —- | |
| 46 | GND | —- | |
| 47 | 5V | 5V | |
| 48 | GND | GND | |
| 49 | 24V | 24V | |
| 50 | 24V | 24V |
Support & Contact #
Technical Support
support@norvi.io
Sales Inquiries
support@norvi.io
NORVI Website
norvi.io
Order Online
norvi.io
