Sferalabs IAMS21X Manuel utilisateur

Iono Arduino User Guide

February 2020

Revision 014

IAMS21X Iono Arduino

a general-purpose, professional input/output module based on a standard Arduino board

Safety information 3
Qualiﬁed personnel 3
Hazard levels 3
Safety instructions 4
General safety instructions 4
Introduction 5
Features 6
Usage and connections 7
Device identiﬁcation 8
Power supply 8
Multi-mode inputs 8
Analog mode 8
Digital mode 8
DI5 and DI6 digital inputs 8
Analog output 9
Relay digital outputs 10
RS-485 serial port 10
Mapping 11
Working with 5.0V and 3.3V boards 12
Hardware Installation 13
Iono Arduino Software Development 15
Programming 15
Arduino Uno 15
Arduino Ethernet 15
Block diagram 17
Board layout 18
Technical speciﬁcations 19
Dimensions 21
Disposal 22
Installation and use restrictions 22
Standards and regulations 22
Safety instructions 22
Set-up 22
Conformity Information 23
EU 23
1
User Guide

Be sure to always remove the power supply before installing or

removing the Arduino board inside Iono Arduino.

Iono Arduino must be operated with both side covers installed.

Follow all applicable electrical safety standards, guidelines,

speciﬁcations and regulations for installation, wiring and operations of

Iono Arduino modules.

Carefully and fully read this Iono Arduino user guide before installation.

Iono Arduino is not authorised for use in safety-critical applications where a failure of the

product would reasonably be expected to cause personal injury or death. Safety-critical

applications include, without limitation, life support devices and systems, equipment or

systems for the operation of nuclear facilities and weapons systems. Iono Arduino is

neither designed nor intended for use in military or aerospace applications or

environments and for automotive applications or environment. Customer acknowledges

and agrees that any such use of Iono Arduino is solely at Customer's risk, and that

Customer is solely responsible for compliance with all legal and regulatory requirements in

connection with such use.

Sfera Labs S.r.l. may make changes to speciﬁcations and product descriptions at any time,

without notice. The product information on the web site or materials is subject to change

without notice.

Please download and read the Sfera Labs Terms and Conditions document available at:

http://www.sferalabs.cc

Iono and Sfera Labs are trademarks of Sfera Labs S.r.l. Other brands and names may be

claimed as the property of others.

User Guide

Safety information

Carefully and fully read this user guide before installation and retain it for future reference.

Qualiﬁed personnel

The product described in this manual must be operated only by personnel qualiﬁed for the

speciﬁc task and installation environment, in accordance with all relevant documentation

and safety instructions. A qualiﬁed person should be capable of fully identifying all

installation and operation risks and avoid potential hazards when working with this product.

Hazard levels

This manual contains information you must observe to ensure your personal safety and

prevent damage to property. Safety information in this manual are highlighted by the safety

symbols below, graded according to the degree of danger.

Indicates a hazardous situation which, if not avoided, will result in death or serious

personal injury.

Indicates a hazardous situation which, if not avoided, may result in death or serious

personal injury.

Indicates a hazardous situation which, if not avoided, can result in minor or moderate

personal injury.

Indicates a situation which, if not avoided, can result in damage of property.

DANGER

WARNING

CAUTION

NOTICE

User Guide

Safety instructions

General safety instructions

Protect the unit against moisture, dirt and any kind of damage during transport, storage

and operation. Do not operate the unit outside the speciﬁed technical data.

Never open the housing. If not otherwise speciﬁed, install in closed housing (e.g.

distribution cabinet). Earth the unit at the terminals provided, if existing, for this purpose.

Do not obstruct cooling of the unit. Keep out of the reach of children.

Life threatening voltages are present within and around an open control cabinet.

When installing this product in a control cabinet or any other areas where dangerous

voltages are present, always switch off the power supply to the cabinet or equipment.

Risk of ﬁre if not installed and operated properly.

Follow all applicable electrical safety standards, guidelines, speciﬁcations and regulations

for installation, wiring and operations of this product.

Ensure that the product is properly installed and ventilated to prevent overheat.

The connection of expansion devices to this product may damage the product and other

connected systems, and may violate safety rules and regulations regarding radio

interference and electromagnetic compatibility.

Use only appropriate tools when installing this product. Using excessive force with tools

may damage the product, alter its characteristics or degrade its safety.

WARNING

NOTICE

User Guide

Introduction

Iono Arduino combines the ease of use of the Arduino platform with multiple input and

output interfaces; the result is a rugged, safe, reliable and easy to connect module, suited

for installation both in industrial and residential environments.

Iono Arduino ships without the Arduino board installed, so you can use your preferred

Arduino board, as far as it is fully compatible with the Arduino 1.0 pinout and ﬁts the Iono

Arduino case.

User Guide

Features

The Iono Arduino modules key features are:

✓12÷24Vdc power supply

✓compatible with 5.0V and 3.3V operating voltage Arduino boards with 1.0 pinout

✓4 multi-mode inputs: either to be used as digital or as 0÷10V or 0÷20mA analog signals

✓2 digital inputs for potential-free contacts

✓1 analog output 0÷10V controlled by PWM signal

✓redundancy of common terminals for simpliﬁed wiring

✓6 power relay outputs rated for 12A at 250V, which can tolerate large peak currents

(inrush current) up to 80A

✓output relays with bistable coil, to minimize the current consumption

✓standard RS-485 interfaces to the Arduino serial pins with automatic TX/RX switching,

and electrostatic discharge protection

✓built-in slot for the installation of an Arduino Uno, Arduino Uno WiFi Rev 2, Arduino

Ethernet, Arduino Leonardo, Arduino Leonardo Ethernet, Arduino Yún Rev 2, or

Arduino Zero board

✓removable terminal blocks for easier installation

✓inputs protected against electrostatic discharges and temporary over voltages

✓double internal insulation between high voltage areas (relay outputs) and all other

components

✓standard modular housing 9 units size, suitable for mounting on Omega rail.

User Guide

Usage and connections

CONNECTION EXAMPLE

User Guide

Device identiﬁcation

The device can be identiﬁed with the information provided in the rating and identiﬁcation

plate, permanently attached to the side of the case.

EXAMPLE RATING AND IDENTIFICATION PLATE

Power supply

Iono Arduino can be powered with DC voltage only:

✓DC: nominal voltage in the range 12V to 24V (MIN=11Vdc, MAX=30Vdc)

Respect the correct polarity shown in the schematic diagram (+ -). The power supply

circuit implements reverse polarity protection using an auto resetting fuse and surge

protection up to ±500V/2ohms 1.2/50μs.

Multi-mode inputs

Iono Arduino features 4 multi-mode inputs (1, 2, 3, 4). Depending on terminal blocks

wiring, digital (ON-OFF), analog 0÷10V or analog 0÷20mA signals can be applied.

Analog mode

When using analog inputs, 0÷10V and 0÷20mA are converted to 0÷3.3V levels in order to

be compatible with the Arduino platform input pins. Both active and passive 0÷20mA (or

4÷20mA) transmitters can be connected, using the C+ terminal as power supply; the

0÷20mA transmitter shown in the schematic here below is a 2-wire passive type.

Digital mode

In digital mode, an external potential free contact can be connected between terminals C+

and DI1-DI4; otherwise, the DIx terminal can be connected to an external voltage signal (in

the range 0÷40V) referred to the GND of the Iono Arduino module. Refer to the Technical

speciﬁcations table for the voltage thresholds for high and low states.

DI5 and DI6 digital inputs

An external potential free contact can be connected between terminals C+ and DI5-DI6;

otherwise, the DIx terminal can be connected to an external voltage signal (in the range

0÷40V) referred to the GND of the Iono Arduino module. Refer to the Technical

speciﬁcations table for the voltage thresholds for high and low states.

User Guide

DI5 and DI6 are connected to the Arduino board through a protection network. If you need

to bypass the protection network to use DI5 and DI6 as general-purpose input/output lines

(e.g. for I2C, 1-Wire or Wiegand communication), you can move jumpers J4 (DI6) and J5

(DI5) to the BYP position.

DI5-DI6 JUMPERS SCHEMATIC

Note that, with the jumpers in the BYP position, you should limit the maximum voltage

applied to DI5 or DI6 to the voltage levels accepted by the Arduino board installed in Iono

Arduino. Exceeding the Arduino voltage range will result in damage to the Arduino board

and Iono Arduino.

J1-J2 JUMPERS POSITION

Analog output

Iono Arduino features a 0÷10V output (AO1) which can be controlled by the PWM function

of the Arduino platform; the 0÷100% duty cycle of PWM signal corresponds to a 0÷10V

output voltage.

This is a sink/source output (the current direction at this output can be both positive and

negative).

NOTICE

User Guide

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