Sferalabs Strato Pi CAN Manual de usuario

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Strato Pi CAN User Guide

July 2018

Revision 006

SPBC11X Strato Pi CAN board

SPMC11X Strato Pi CAN server with Raspberry Pi 3 Model B

SPMC11XP Strato Pi CAN server with Raspberry Pi 3 Model B+

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Safety information 4

Qualiﬁed personnel 4

Hazard levels 4

Safety instructions 5

General safety instructions 5

Battery 5

Introduction 7

Features 8

Usage and connections 9

Hardware Installation 9

Strato Pi CAN board 9

Strato Pi CAN server 10

Replacing the RTC backup battery 10

Terminal block 11

Power supply 12

Relay output 14

Dedicated GPIO pins 14

Software installation and conﬁguration 15

Strato Pi CAN utility 15

Real Time Clock software 15

Testing the Real Time Clock 16

CAN Bus 17

Disabling Bluetooth, WiFi and the serial console 17

Using Strato Pi CAN 19

Real Time Clock 19

RS-485 port 19

CAN port 20

Buzzer 22

Relay 22

Hardware watchdog 22

Power cycle 23

Block diagram 24

Technical speciﬁcations 25

Dimensions 27

Disposal 28

Installation and use restrictions 28

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Strato Pi CAN User Guide

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Standards and regulations 28

Safety instructions 28

Set-up 28

Conformity Information 29

EU 29

USA 29

CANADA 29

AUSTRALIA / NEW ZEALAND 30

Compliance information for Raspberry Pi 3 Model B 30

EU 30

USA 30

CANADA 30

Compliance information for Raspberry Pi 3 Model B+ 30

EU 31

USA 31

CANADA 31

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Strato Pi CAN User Guide

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Be sure to always remove the power supply before connecting or

disconnecting the Strato Pi CAN board to Raspberry Pi.

Follow all applicable electrical safety standards, guidelines,

speciﬁcations and regulations for installation, wiring and operations of

Strato Pi CAN.

Carefully and fully read this Strato Pi CAN user guide before

installation.

Strato Pi CAN 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. Strato is neither

designed nor intended for use in critical military or aerospace applications or

environments. Customer acknowledges and agrees that any such use of Strato Pi CAN 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

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

claimed as the property of others.

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Strato Pi CAN User Guide

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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

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WARNING

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CAUTION

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NOTICE

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Strato Pi CAN User Guide

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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.

The Raspberry Pi board could generate a substantial amount of heat when the software

forces the CPU and/or GPU to operate at high load levels. 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.

Battery

This product uses a small lithium non-rechargeable battery to power its internal real time

clock (RTC).

WARNING

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WARNING

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NOTICE

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Strato Pi CAN User Guide

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Improper handling of lithium batteries can result in an explosion of the batteries and/or

release of harmful substances.

Worn-out or defective batteries can compromise the function of this product.

Replace the RTC lithium battery before it is completely discharged. The lithium battery

must be replaced only with an identical battery. See the "Replacing the RTC backup

battery" section for instructions.

Do not throw lithium batteries into ﬁre, do not solder on the cell body, do not recharge, do

not open, do not short-circuit, do not reverse polarity, do not heat above 100°C and protect

from direct sunlight, moisture and condensation.

Dispose of used batteries according to local regulations and the battery manufacturer's

instructions.

WARNING

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Strato Pi CAN User Guide

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Introduction

Strato Pi CAN enhances the Raspberry Pi Model B version 2 and 3 computers with several

hardware features to make it suitable for use in professional applications where reliability

and service continuity are key requirements.

It is available as a bare board or fully assembled unit including a Raspberry Pi 3 Model B

or B+ in a standard DIN-rail case.

The information contained in this manual covers all versions, except where explicitly stated

otherwise. The bare board is called “Strato Pi CAN board”, while the assembled unit is

“Strato Pi CAN server”.

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Strato Pi CAN User Guide

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Features

Strato Pi CAN board:

✓9-65Vdc power supply, with surge and reverse polarity protection, and 1.3A resettable

fuse

✓Controller Area Network (CAN) V2.0B interface, support speeds up to 1 Mb/s, with

opto-isolator and electrostatic discharge protection

✓standard RS-485 interface to the Raspberry Pi serial line, with opto-isolator and

electrostatic discharge protection

✓up to 2.5A max current to the 5V Raspberry Pi power supply input pins (at 24Vdc)

✓real time clock with on-board lithium back-up battery

✓one relay with change-over (CO), Single Pole Double Throw (SPDT) terminals

✓on-board buzzer, connected to an I/O pin of the Raspberry Pi board, for acoustic

feedback

✓hardware watchdog implemented in the Strato Pi board, fully independent from the

Raspberry Pi, controlled via the I/O pins of the Raspberry Pi board

✓on-board LEDs for power supply, RS-485 and CAN bus activity

✓power supply and serial connections on a screw terminal block

Strato Pi CAN server only:

✓pre-assembled and tested Raspberry Pi 3 Model B or B+ with Strato Pi CAN board in a

standard 4 modules DIN rail case

✓side access to HDMI and 3.5mm jack for audio and composite video

✓access to all USB ports and Ethernet port (opposite to the power and serial terminal

block).

The RS-485 and CAN interfaces are independently opto-isolated, but are powered by a single

galvanically isolated DC-DC converter. This means that the RS-485 lines are not galvanically

isolated from the CAN lines.

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Strato Pi CAN User Guide

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Usage and connections

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STRATO PI CAN CONNECTION DIAGRAM

Hardware Installation

Strato Pi CAN board

The Strato Pi CAN board is supplied with all connectors pre-installed. No soldering is

required. You should connect Strato Pi to Raspberry Pi aligning the GPIO connector. Use

appropriate turrets/spacers to ﬁrmly bolt the two boards together, ensuring that no

conductive part of one board touches any part of the other board.

Be particularly careful to ensure there is enough clearance between the Ethernet and USB

connectors and the bottom of Strato Pi CAN circuit board.

The GPIO connector of the Strato Pi CAN board must be perfectly aligned to the

Raspberry Pi's GPIO pins. Turning on the Raspberry Pi and/or the Strato Pi CAN board

with the GPIO not correctly connected will damage both the Raspberry Pi and Strato Pi

CAN board.

NOTICE

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Strato Pi CAN User Guide

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