Product Features #
- Optically Isolated Digital Inputs
- Inputs can withstand voltages up to 36V DC
- Internally Pulled Up
- MCP23008 Port Expander
- Address Configurable Over DIP Switch
Expansions Supported
- Digital 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 Digital Inputs |
| Displays and Visual Indicators | 1 LED green |
Complementary #
| Product Unified Code | NORVI EX-I8 |
| Product Part Numbers | NORVI EX-I8 |
Mechanical Properties #
| Enclosure | NORVI 202 |
| 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 | 59.00 mm |
| Height | 86.00 mm |
| Width | 35.00 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 #
| SOC / MCU | 8-bit-I/O Expander with Serial Interface |
| Module | MCP230008 |
| Operating supply voltage | 2.4V to 3.6V |
| I2C SDA | GPIO16 |
| I2C SCL | GPIO17 |
INPUTS and OUTPUTS #
Digital Inputs #
| Number of Digital Inputs | 8 |
| Digital Input Polarity | Sink and Source |
| Digital Input Maximum Voltage | 32V DC |
| Digital Input Minimum Voltage | 18V DC |
| 1 kHz | 1 kHZ |
| Terminal Arrangement | Digital Input 0 – GP0 Digital Input 1 – GP1 Digital Input 2 – GP2 Digital Input 3 – GP3 Digital Input 4 – GP4 Digital Input 5 – GP5 Digital Input 6 – GP6 Digital Input 7 – GP7 |
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 #
| PIN | ESP32 Connection |
| 1 | TXD0 |
| 2 | GPIO25 |
| 3 | RXD0 |
| 4 | AUX1 |
| 5 | GPIO15 |
| 6 | NRST |
| 7 | SCL2 |
| 8 | AUX2 |
| 9 | SDA2 |
| 10 | GND |
