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Iono RP D16

Iono RP D16 is a versatile and compact industrial I/O module with 16 high-performance digital interfaces and a Raspberry Pi RP2040 core. Programmable in C/C++ and MicroPython. CE/FCC/IC compliant

From 276.00 + tax

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An industrial digital I/O module with a Raspberry Pi RP2040 core

Iono RP D16 features 16 galvanically isolated input and output lines, controlled by the combination of two MAX22190 (IEC 61131-2 compliant industrial digital input device) and two MAX14912/MAX14913 (high-speed high-side switch/push-pull driver IC).

Protection logic built into the MCU, as well as the additional protection circuits designed specifically for the Iono RP D16, render the module extremely robust, offering long-term operational reliability, even in the most demanding conditions.

Develop your custom firmware in C/C++ or MicroPython, use your preferred IDE among the many available options for the RP2040, no need for proprietary libraries or drivers and all the resources from the Raspberry Pi community will transparently work.

Fully CE, FCC, and IC compliant, the Iono RP D16 is suitable for both residential and industrial installations.



  • 3 modules DIN rail case
  • power supply, serial and I/O connections on pluggable terminal blocks

Power supply:

  • 12÷28 Vdc power supply input, with surge and reverse polarity protection, and 1.1A resettable fuse
  • 5V 350mA auxiliary voltage output, with overcurrent and reverse current protection


  • Raspberry Pi RP2040 – Dual ARM Cortex-M0+ @ 133MHz, 264kB on-chip SRAM


  • 16MB embedded Flash


  • up to 16 x 640mA outputs, driven by high-side switches that can also be configured as push-pull drivers for high-speed switching
  • up to 16 x IEC 61131-2 compliant current-sinking inputs
  • galvanic isolation between the power I/O section and the logic section, including the microcontroller, serial interface and general-purpose input/output lines
  • 4 x TTL level I/Os (1-Wire, I2C, Wiegand support)


  • standard RS-485 interface to the RP2040 serial lines, with electrostatic discharge protection
  • USB programming/debugging port

Factory-installed optionals:

  • real time clock (RTC) with back-up battery
  • secure element chip
  • earthquake sensor module


Power supply operating voltage (VS) 12…28 V⎓  nom. (10…30 V⎓ )

Reverse polarity protection with 1.1 A resettable fuse. Surge protection up to ±500 V / 2 Ohms 1.2/50 μs

Current consumption at VS+ 12V⎓ no I/O 55 mA
Current consumption at VS+ 24V⎓ no I/O 35 mA
IVINL supply operating voltage 12…28 V⎓  nom. (10.5…36 V⎓ )
IVINL input current Max 20 mA + ∑ D1-D8
IVINH supply operating voltage 12…28 V⎓  nom. (10.5…36 V⎓ )
IVINH input current Max 20 mA + ∑ D9-D16
VSO output voltage (min.) VS – 1 V
VSO output  current (max.) 300 mA
5VO output voltage (typ.) 5.0 V (no load)
5VO output  current (max.) 350 mA
5VO overcurrent protection threshold 420 mA
USB port output  current (max.) 500 mA
Microcontroller Raspberry Pi RP2040

dual-core Arm Cortex M0+, 133 MHz, 264KB SRAM

16MB on-board Flash memory

Serial communication ports RS-485 Half-Duplex with manual or automatic TX/RX management
Baud Rates 1200 to 115200
ESD-Protection Voltage on RS-485 A/B ±15 kV human body model

±8 kV contact discharge

Surge protection on RS-485 A/B Surge protection up to ±500 V / 2 Ohms 1.2/50 μs; 600 W peak pulse power capability at 10/1000 μs waveform
Fail safe feature on RS-485 Optional with jumpers (not installed)
USB port Micro-USB B Receptacle

USB 1.1, host and device support

D1-D16: DIGITAL inputs
Input voltage range +0…+36 V

never apply voltages higher than IVINL to the D1-D8 lines or higher than IVINH to the D9-D16 lines

Input current 2.4 mA
Voltage thresholds Compatible with EN 61131-2 Type I and III sensors

VIH: 9.9 V

VIL: 7.4 V

Driver mode high-side or push-pull
Maximum current per output 640 mA
HS or PP high-side on-resistance 110 mOhm (Max 230 mOhm)
PP low-side on-resistance 1 Ohm (Max 2.5 Ohm)
DT1-DT4: Digital input/output
Output voltage VOL: 0.1 V

VOH: 5.0 V

Input voltage threshold VIH: 1.4 V

VIL: 1.1 V

Pull-up (+5 V) 10 kOhm
Max cable length 10 meters
Capacity 16 Kbit (2048 x 8 bits)
SRAM r/w cycles Infinite
EEPROM store cycles > 1000000
Data retention > 200 years
Electromagnetic immunity compliance EN 61000-4-2 (ESD)

EN 61000-4-3 (Radiated RF Field)

EN 61000-4-4 (Burst/fast transient)

EN 61000-4-5 (Surge)

EN 61000-4-6 (Conducted)

EN 61000-4-8 (Power frequency magnetic field)

Operating temperature -20…+60 °C (non-condensing humidity)
Relative humidity 5% to 90% noncondensing
Storage temperature -30…+80 °C
Protection degree IP20
3.81 mm pitch terminal block characteristics Maximum conductor cross section: 1.3 mm2 (16AWG), or 0.5 mm2 when using ferrules (highly recommended)

Recommended stripping length: 6 mm

Screw thread: M2

Maximum screws tightening torque: 0.3 Nm

Dimensions 3 module Din Rail enclosure

width: 53.5 mm

height: 90.5mm

depth: 62.0mm

Weight 135 gr



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