Product Features #
- Up to Eight Differential Analog Inputs
- Drive™ Technology
- Digitizes high Impedance Sensors
- 0.02LSB Transition Noise
- 50Hz/60Hz Rejection
- 2ppm INL
- 1ppm Offset and 15ppm Full-Scale Error
- No Latency
- DIN-Rail mount
Expansions Supported
- Analog Input
Main #
| Range of Product | NORVI Expansion |
| Product Type | Expansion Module |
| 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 |
| Communication | I2C |
| Inputs and Outputs | 8 x 0 – 2.5V Differential Analog Inputs |
| Displays and Visual Indicators | LED green |
Complementary #
| Product Unified Code | NORVI-EX-ANV16 |
| Product Part Numbers | NORVI-EX-ANV16 |
Mechanical Properties #
| Enclosure | NORVI 204 |
| Mounting / Installation Method | DIN RAIL / MOUNTING TABS |
| Terminal Type | Top hat type TH35-15 rail conforming to IEC 60715 Top hat type TH35-7.5 rail conforming to IEC 60715 Plate or panel with fixing kit |
| Terminal Arrangement | Top and Bottom |
| Length | 90.50 mm |
| Height | 56.60 mm |
| Width | 60.60 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) | 400mA |
| Recommended Power Source | 1A 24V DC |
Processing #
| ADC | TC2497CUHF#PBF |
| Module Type | 16-bit, 8-Channel Differential ADC |
| Operating supply voltage | 0 – 2.5V |
| I2C SDA | EX Pin 10 |
| I2C SCL | EX Pin 8 |
INPUTS and OUTPUTS #
Analog Inputs #
| Number of Analog Inputs | 8 |
| Analog Input Maximum Voltage | 6V |
| Analog to Digital Converter (ADC) | LTC2497CUHF#PBF |
| Analog to Digital Converter (ADC) Communication | I2C |
| Terminal Arrangement |  |
I2C Address Assignment #
The LTC2497 has three address pins. Each may be tied high, low, or left floating enabling one of the possible addresses.
| LTC2497 I2C Address | AD2 | AD1 | AD0 |
| 0x14 | Low | Low | Low |
| 0x15 | Low | Low | Float |
| 0x17 | Low | Float | Low |
| 0x24 | Low | Float | Float |
| 0x35 | Float | Low | Low |
| 0x36 | Float | Low | Float |
| 0x44 | Float | Float | Low |
| 0x45 | Float | Float | Float |
I2C Address Setting #
The I2C address of the expansion module can be configured by switching DIP switches at the bottom of the expansion module. The device can be configured at 8 I2C addresses using the first 3 DIP switches.
Expansion Port #
The expansion port of the NORVI IIOT Controllers can be utilized for external sensor connections where raw GPIO connections are required or they can be used to plug NORVI Expansion Modules.
| PIN | ESP32 Connection |
| 1 | GPIO25 |
| 2 | TXD0 |
| 3 | AUX1 |
| 4 | RXD0 |
| 5 | NRST |
| 6 | GPIO15 |
| 7 | AUX2 |
| 8 | SCL2 |
| 9 | GND |
| 10 | SDA2 |
