gefran CAN-IO User manual

180990B_MHW_CAN-IO_12-2016_ENG
ATTENTION!
This manual must always be available to operators of the
devices described here.
Always make sure that you have the latest version of the
manual, which is available for free download from the GEFRAN
website (www.gefran.com).
Installers and/or maintenance personnel are required to read
this manual and to precisely follow the instructions contained
in it and in its attachments.
GEFRAN will not be liable for any damage to persons and/or
property, or to the product itself, caused by failure to follow
the instructions and observe the warnings given below.
This manual and its attachments may be freely reproduced
as long as they are not changed in any way and every copy
contains this warning and the declaration of ownership by
Gefran S.p.A.
INSTALLATION AND USER MANUAL
code: 80990B - 12-2016 - ENG
CAN-IO
Custom IO remote module
This document is the property of GEFRAN and may not be reproduced or transferred to third parties without authorization.

2 80990B_MHW_CAN-IO_12-2016_ENG
REVISION DOCUMENTS
DATE CODE UPDATE
07-2013 80990A First emission
12-2016 80990B Analog out +/-10V accurancy

380990B_MHW_CAN-IO_12-2016_ENG
SUMMARIES AND TABLES OF CONTENTS
REVISION DOCUMENTS���������������������������������������������������������2
SUMMARIES AND TABLES OF CONTENTS ��������������������������3
PREFACE����������������������������������������������������������������������������������4
Avvertenze e sicurezza���������������������������������������������������������4
Printing conventions used in the manual ���������������������������4
Glossary ���������������������������������������������������������������������������������5
GENERAL ���������������������������������������������������������������������������������6
Overview of the solution and functionalities ���������������������� 6
Architecture ���������������������������������������������������������������������������6
CAN-IO �������������������������������������������������������������������������������������7
Technical data �����������������������������������������������������������������������7
Dimensions ��������������������������������������������������������������������������14
CAN-IO module assembly ��������������������������������������������������17
Assembly on plate ............................................................... 17
Assembly on DIN runner ...................................................... 17
Positioning........................................................................... 17
CAN-IO module connections ���������������������������������������������18
Connectors, signals and conguration element ................... 18
Power .................................................................................. 18
CAN..................................................................................... 19
Heading the wires................................................................ 20
Identication of inputs and outputs ..................................... 20
Connection diagrams ��������������������������������������������������������21
Digital input ......................................................................... 21
Fast digital input – One-way encoder .................................. 21
Fast digital input – Two-way encoder................................... 22
Fast digital input – Impulse counter / Period measurer /
Frequency measurer / Duty-cycle measurer / Impulse duration
measurer ............................................................................. 22
Thermocouple temperature input......................................... 23
Thermo resistance temperature input PT100 and PT1000 with
2 wires................................................................................. 23
Thermo resistance temperature input PT100 and PT1000 with
3 wires................................................................................. 24
Thermo resistance temperature input PT100 and PT1000 with
4 wires................................................................................. 24
Analogue input in voltage .................................................... 25
Analogue input in current..................................................... 25
Analogue input in current – 2-wire amplied transducer ...... 26
Analogue input in current – 4-wire amplied transducer ...... 26
Potentiometer analogue input.............................................. 27
Electric resistance extensometer analogue input (“strain gauge”)
............................................................................................ 27
Digital output - PWM .......................................................... 28
Analogue output in voltage / in current ................................ 28
N.O. single contact relay output .......................................... 29
Exchange contact relay output ............................................ 29
Congurations���������������������������������������������������������������������30
Setting the transmission speed............................................ 30
MAINTENANCE AND DIAGNOSTICS �����������������������������������31
Maintenance ������������������������������������������������������������������������31
Integrated Controller and Operator Panel ........................... 31
CAN-IO Module ................................................................... 31
Disposal............................................................................... 31
Diagnostics��������������������������������������������������������������������������31
Integrated Controller and Operator Panel ............................ 31
CAN-IO Module ................................................................... 31
CAN-IO ���������������������������������������������������������������������������������32
Code examples.................................................................... 32
Accessories �������������������������������������������������������������������������33

4 80990B_MHW_CAN-IO_12-2016_ENG
Avvertenze e sicurezza
Printing conventions used in the manual
While all the information contained in this manual has been
carefully checked, Gefran S.p.A. accepts no responsibility
for the possible presence of errors or for damage to persons
and/or property caused by the improper use of the manual.
Gefran S.p.A. also reserves the right to make changes to the
contents and form of this manual and to the characteristics of
the devices illustrated at any time and without prior warning.
The installation of the devices illustrated in the manual must
be carried out by qualied technicians in compliance with
the laws and standards in force and in agreement with the
instructions contained in the manual.
If the CAN-IO is used in applications with the risk of damages
to persons, machinery or materials, its use in conjunction with
alarms is essential.
It is advisable to envisage the possibility of checking the
intervention of the alarms during regular operation.
Before interacting with the board, the operator must receive
full training in the procedures of operation, emergency,
diagnosis and maintenance of the system.
Pay attention to the use of the following symbols.
Highlights particularly important information which
inuences the correct operation of the product or
of safety or an instruction which must absolutely be
followed.
Highlights a risk condition for the safety of the installer
or the user, due to the presence of dangerous levels
of voltage.
PREFACE

580990B_MHW_CAN-IO_12-2016_ENG
CAN Controller Area Network, also known as
CAN-bus, is a standardised bus that
enables the devices to communicate
with each other.
CANopen CAN communication protocol.
Protocol specication for devices used in
automation systems.
Work cycle Fraction of time that represents the active
state of a device, circuit, etc. in relation to
the total time considered.
Data logger Enables the storage of information for ling
records or further processing.
Duration of
settlement
Time required for the output value to reach
and remain above 90 % of the nal value.
Encoder Rotative position transducer.
Electric
resistance
extensometer
Sensor that transforms small dimensional
deformations of a body subject to
mechanical or thermal stress in changes
of electric.
Ethernet Standard for local networks (LAN).
FLASH Non-volatile memory in the solid state.
FRAM Non-volatile RAM faster than the Flash
memory.
FTP File Transfer Protocol.
Allows the upload and download of data
les between the controller and other
digital devices.
LSB Least Signicant Bit.
It defines the minimum resolution of a
measurement.
LSS Layer Setting Services.
Modbus Open serial communication protocol, de
facto standard in communication between
industrial electronic devices.
Modbus RTU is the most common
implementation of this standard, Modbus
TCP/IP is that specific m for Ethernet
networks.
Opto isolated Circuit conguration which, through an
electronic component called an opto-
isolator, allows the transferral of a signal
between two circuits while maintaining
galvanic separation.
PID Regulation algorithm.
PLC Programmable Logic Controller.
A digital computer specialised in the
management of industrial processes.
PWM Pulse-Width Modulation.
Technique for controlling power towards
electric devices.
Glossary
RAM Random Access Memory
Electronic memorising device which
enables the reading and writing of data.
RS-232 Standard which denes a low-speed serial
transmission interface for the exchange of
data between digital
devices, such as modems.
RS-485 Standard, at physical level, for serial
connection with 2 wires.
SD Card Card for memorising large amounts of
digital data.
SDRAM Synchronised access RAM.
Strain gauge See Electric resistance extensometer.
USB Universal Serial Bus, serial communication
and feeding standard created to connect
peripherals to computers.

6 80990B_MHW_CAN-IO_12-2016_ENG
Overview of the solution and functionalities
CAN-IO is IO Remote module for the management of remo-te
inputs and outputs, which can be completely customised to
suit customer requirements, adapting perfectly to the machine
or system to control.
Thanks to its exibility and ease of use, CAN-IO can be used in
a variety of sectors and for numerous process and automation
process controls, such as:
• the wood industry (gluing, etc.);
• packaging (packing, labelling, etc.);
• food industry (pasteurisers, etc.);
• chemical industry (autoclaves, etc.);
• metal working (washing, etc.);
• plastic working (dryers, coolers, etc.).
Architecture
Figure 1 - System architecture
GENERAL
CANopen
RS232
RS485 USB
Ethernet
CAN
SD card
Modbus/RTU
Modbus/TCP

780990B_MHW_CAN-IO_12-2016_ENG
The remote input and output module (I/O) allows:
• acquisition of multiple information for the appliances
controlled and from the environment, via signals and
sensors;
• control and regulate appliances through dierent types of
signals and commands.
The modules are available in dierent models and can manage
up to a total of 40 channels (inputs and outputs) each, with
the following limits type (see ordering codes):
• digital inputs: 24 max;
• fast digital inputs (meters): 6 max;
• digital outputs: 16 max in total (outputs 0.5 A: 16 max;
• outputs 2 A: 16 max; relay outputs: 8 max);
• PWM outputs: 8 max;
• Temperature inputs (thermocouples, thermo resistance
PT100, thermo resistance PT1000): 10 max in total;
• analogue inputs (power input ±10 V, current input 0/4…20
mA, extensometer input, potentiometer input): 8 max in
total;
• analogue outputs (power outputs ±10 V, current outputs
0/4…20 mA): 8 max in total.
The main characteristic of the module is that it is assembled
according to user requirements, combining dierent type
inputs and outputs on the same card, in the quantities
required. In this way they adapt perfectly to the requirements
of the machine or system to be controlled.
The modules can be prepared for assembly on DIN runner or
plate, according to requirements.
Technical data
POWER
Operating voltage 24 Vdc ±25%
Absorbed current (at 24 Vdc) 700 mA max
Dissipated power 12 W max
Connections Screw terminals, max wire section 1 mm2
CONNECTIONS
CAN Port Opto-isolated
DB9 M: Connector
I/O Ports
Connectors depending on the conguration.
Type 1: screw terminals, max wire section 1 mm2; for relay
max wire section 2.5 mm2
Type 2: click-in, female, 12-pole
Type 3: comb
COMMUNICATION
PROTOCOLS
CAN
CANopen (NMT slave)
Version: communication prole DS301 v. 4.02
device prole DS401
Module addresses available 128
Transmission speed 10, 20, 50, 100, 125, 250, 500 (predened), 800, 1000
kbit/s, selectable via hardware or software
CAN-IO

8 80990B_MHW_CAN-IO_12-2016_ENG
DISPLAY LED
Card 1 yellow “Power” LED
1 green “Run” LED
Bus CAN 1 green “Run” LED
1 red “Run” LED
Digital input 1 green “Status” LED
Digital output 1 green “Status” LED
Output 0.5 A: yellow “Power” LED every 8 outputs;
Output 2 A: yellow “Power” LED every 4 outputs
Fast counter 1 green “Status” LED
Relay output 1 green “Status” LED
PWM output 1 green “Status” LED
1 yellow “Power” LED every 8 outputs
CAN PROTOCOL
Module address conguration 1 switch + 2 16-position dials
Transmission speed
conguration Via procedure with module address dials or via software
Bus termination conguration 2 switch
DIGITAL INPUT
Max number 24 (orderable in groups: 3, 6, 9, 12, 15, 18, 21, 24)
Type Absorption of current type 1, 2, 3
Rated voltage 24 Vdc
Max input voltage 32 Vdc
Max input current 6.5 mA
Switch threshold Low level: ≤ 8 Vdc
High level: ≥ 9 Vdc
Hardware lter 100 Hz
Switch delay 0 -> 1: 100 μs
1 -> 0: 85 μs
Protections Polarity inversion Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no Channel-bus: 2 kV
FAST DIGITAL INPUT
Max number 6 (orderable in groups: 3, 6)
Type Absorption of current type 1, 2, 3
Rated voltage 24 Vdc
Max input voltage 32 Vdc
Max input current 6,5 mA
Switch threshold Low level: ≤ 8 Vdc
High level: ≥ 9 Vdc
Hardware lter 50 kHz
Switch delay 0 ⇒ 1: < 500 ns
1 ⇒0: < 500 ns
Position / counter output format Type: DINT
Resolution: 32 bit (-2147483648 ... 2147483647
Speed output format Type: DINT
Resolution: 32 bit (-2147483648 ... 2147483647)
LSB: 0.1 impulses/s

980990B_MHW_CAN-IO_12-2016_ENG
FAST DIGITAL INPUT
Period measurer / impulse
duration measurer output format
TYPE: DINT
Resolution: 32 bit (0 ... 21,4 s)
LSB: 10 ns
Frequency measurer output
format
TYPE: DINT
Resolution: 32 bit (0 ... 500 kHz)
LSB: 0,1 Hz
Protections Polarity inversion
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
Main functions 6 one-way incremental encoders [A] max;
2 one-way incremental encoders + zero notch [A+Z] max;
2 two-way incremental encoders [AB] max;
2 two-way incremental encoders + zero notch [AB+Z] max;
Max 6 count forward [Counter]
Auxiliary functions Period measurer
Frequency measurer
Duty-cycle measurer
Positive/negative impulse measurer
THERMOCOUPLE
TEMPERATURE INPUT
Max number 10 (orderable in groups: 2, 4, 6, 8, 10)
Type Thermocouple J, K, R, S, T, E, B, L, N
Type of connection 2 wires (insulated and non-insulated)
Through band 0,5 Hz
Input impedance > 1 MΩ
Sampling time
(for all channels)
100 ms
Resolution 0,1 °C / °F
Max error @ 25 °C ±0,5% scale bottom
Thermocouple use interval
(scale)
J: 0 … 1000 °C / 32 … 1830 °F
K: 0 … 1300 °C / 32 … 2372 °F
R: 0 … 1750 °C / 32 … 3182 °F
S: 0 … 1750 °C / 32 … 3182 °F
T: -200 … 400 °C / -392 … 752 °F
E: -100 … 750 °C / -212 … 1382 °F
B: 0 … 1820 °C / 32 … 3308 °F
L: -200 … 400 °C / -392 … 752 °F
N: 0 … 1300 °C / 32 … 2372 °F
THERMO RESISTANCE
TEMPERATURE INPUT
Max number 10 (orderable in groups: 2, 4, 6, 8, 10)
Type Thermo resistance PT100 or PT1000
Type of connection 2 or 3 wires
Through band 0,5 Hz
Input impedance PT100: 12 kΩ
PT1000: 120 kΩ
Sampling time
(for all channels)
100 ms
Resolution 0,1 °C / °F
Max Error @ 25 °C ±0,5% scale bottom
Use interval (scale) -200…850 °C / -392…1562 °F
Protections Polarity inversion: yes
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV

10 80990B_MHW_CAN-IO_12-2016_ENG
ANALOGUE INPUT
IN VOLTAGE ±10 V
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Single-ended voltage ±10 V
Input lter Low-pass, 3rd order
Cutting frequency: 20 Hz
Input impedance > 1 MΩ
Sampling time
(for all channels)
5 ms
Output format Type: INT
Resolution: 13 bit (-4096 … 4095)
LSB: 2,44 mV
Max error @ 25 °C ±0,5% scale bottom
Protections Polarity inversion: yes
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
ANALOGUE INPUT
IN CURRENT
0/4 … 20 mA
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Current 0 ... 20 mA
Input lter Low-pass, 3rd order
Cutting frequency: 20 Hz
Input impedance 100 Ω
Sampling time
(for all channels)
5 ms
Output format Type: UINT
Resolution: 14 bit (0 … 20 mA: 0 … 16384
4 … 20 mA: 3277 … 16384)
LSB: 4,88 μA
Max error @ 25 °C ±0,5% fondo scala
Protections Polarity inversion: yes
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
POTENTIOMETER
ANALOGUE INPUT
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Potentiometer 2 kΩ min.
Transducer power 5 V, 150 mA max
Input lter Low-pass, 3rd order
Cutting frequency: 20 Hz
Input impedance > 1 MΩ
Sampling time
(for all channels)
5 ms
Output format Type: UINT
Resolution: 12 bit
LSB: 1,22 mV
Max error @ 25 °C ±0,5% scale bottom
Protections Polarity inversion: yes
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV

1180990B_MHW_CAN-IO_12-2016_ENG
ELECTRIC RESISTANCE
EXTENSOMETER
ANALOGUE INPUT
(“strain gauge”)
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Dierential, strain gauge, 2,2 mV/V, 3,3 mV/V
Transducer power 5 V, 150 mA max
Input lter Low-pass, 2nd order
Cutting frequency: 20 Hz
Input impedance > 1 MΩ
Sampling time
(for all channels)
5 ms
Output format Type: UINT
Resolution: 16 bit
LSB: 0,38 μV
Errore max @ 25 °C ±0,5% scale bottom
Protections Polarity inversion: yes
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
DIGITAL OUTPUT 0,5 A
Max number 16 (orderable in groups: 2, 4, 6, 8, 10, 12, 14, 16)
Composition Every 8 outputs a power wire
Type Current emission
Rated voltage 24 Vdc ±25%
Max output current Single output: 0.5 A
Group of 8 outputs: 4 A
Switch delay 0 ⇒ 1: 30 μs
1 ⇒ 0: 50 μs
Protections Short circuit
Overload : I ≥ 0.7 A (according to IEC 61131-2)
Overtemperature
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
DIGITAL OUTPUT 2 A
Max number 16 (orderable in groups: 2, 4, 6, 8, 10, 12, 14, 16)
Composition Every 4 outputs a power wire
Type Current emission
Rated voltage 24 Vdc ±25%
Max output current Single output: 2 A
Group of 4 outputs: 8 A
Switch delay 0 ⇒ 1: 20 μs
1 ⇒ 0: 50 μs
Protections Short circuit
Overload: I ≥ 2,7 A (according to IEC 61131-2)
Overtemperature
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV

12 80990B_MHW_CAN-IO_12-2016_ENG
RELAY OUTPUT,
SINGLE CONTACT
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Single N.O. contact
Rated voltage 30 Vdc / 250 Vac
Max current 5 A
Mechanical duration 20 x 106operations
Contact duration 70.000 operations
Protections Overvoltage: max 430 V @ 1 mA
Electric insulation Channel-channel: yes
Channel-bus: 3 kVrms
RELAY OUTPUT,
EXCHANGE CONTACT
Max number 4 (orderable in groups: 2, 4)
Type exchange contact N.O., N.C.
Rated voltage 30 Vdc / 250 Vac
Max current 5 A
Mechanical duration 20 x 106operations
Contact duration 2 A: 300.000 operations
5 A: 70.000 operations
Protection Overpressure: max 430 V @ 1 mA
Electric insulation Channel-channel: yes
Channel-bus: 3 kVrms
PWM OUTPUT
Max number 8 (orderable in groups: 2, 4, 6, 8)
Composition Every 8 outputs a power wire
Type Current emission
Rated voltage 25 Vdc ±25%
Max output current Single output: 1 A
Group of 8 outputs: 8 A
Output conguration PWM
Frequency
PWM output Duty cycle: resolution 0.01%
Frequency: resolution 0.01 Hz
Max frequency: 5 kHz
Frequency output Duty cycle: resolution 50%
Frequency: resolution 0.01 Hz
Max frequency: 50 kHz
Output format Type: INT
Resolution: 13 bit (-4096 … 4095)
LSB: 2,44 mV
Switch delay 0 ⇒ 1: 1,5 μs
1 ⇒ 0: 1 μs
Protections Short circuit
Overload : I ≥ 1.4 A
Overtemperature
Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV

1380990B_MHW_CAN-IO_12-2016_ENG
ANALOGUE OUTPUT
VOLTAGE ±10 V
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Single ended voltage ±10 V
Max output current 20 mA
Refreshing time 10 ms
Settling time
(“settling time”)
1 ms
Output format Type: INT
Resolution: 13 bit (-4096 … 4095)
LSB: 2,44 mV
Max error @ 25 °C ±0,5% scale bottom
Protections Short circuit ±10V: yes
Overpressure: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
ANALOGUE OUTPUT
CURRENT 0/4 ��� 20 mA
Max number 8 (orderable in groups: 2, 4, 6, 8)
Type Current, 0 ... 20 mA
Max voltage 12 V
Max charge 600 Ω
Refreshing time 5 ms
Settling time
(“setting time”)
1 ms
Output format Type: UINT
Resolution: 12 bit (0 … 20 mA: 0 … 16384
4 … 20 mA: 3277 … 16384)
LSB: 1,22 μA
Max error @ 25 °C ±0,8% scale bottom
Protections Overvoltage: max 1 kV per 1 ms
Electric insulation Channel-channel: no
Channel-bus: 2 kV
ENVIRONMENTAL
CONDITIONS
Operating temperature 0 ... +50 °C (according to IEC 68-2-14)
Storage temperature -20 ... +70 °C (according to IEC 68-2-14)
Relative humidity 5 ... 95% RH non-condensing (in according to IEC 68-2-3)
ASSEMBLY Direct on plate, with spacers
On 35 mm DIN bar, horizontal or vertical (optional)
DEGREE OF
PROTECTION
IP 20 (optional)
WEIGHT
Depending on the I/O conguration
For assembly on plate: 0.6 kg max
For assembly on DIN runner: 0,85 kg max
CERTIFICATION CE
UL by specic request
CE STANDARDS
EMC conformity
(electromagnetic compatibility)
Observance of Directive 2014/30/EU
EN61131-2: Programmable Controllers
Part 2: Equipment requirements and test.
LV conformity
(low voltage)

1480990B_MHW_CAN-IO_12-2016_ENG
Dimensions
max 355.1
max 320.1
111
53.4
67,7
53.4
67,7
53.4
67,7
Figure 4 - Dimensions CAN-IO, versions for assembly on DIN runner

15 80990B_MHW_CAN-IO_12-2016_ENG
Figure 5 - dimensions, versions for assembly on plate, with relay
Type AR
Type BR
Type CR
Type DR
Dimensions in mm
91
8.3
8.3
100.915 63.5 63.45 66.25 37.1
107.6ā0.2
max 354.1±0.2
284.1±0.2
249.1±0.2
179.1±0.2

1680990B_MHW_CAN-IO_12-2016_ENG
Figure 6 - CAN-IO, dimensions, versions for assembly on plate, without relay
Type A
Type B
Type C
Type D
Dimensions in mm

1780990B_MHW_CAN-IO_12-2016_ENG
CAN-IO module assembly
Attention: CAN-IO modules can be supplied in the
version for assembly onto plate and in the version for
assembly onto 35 mm DIN runner.
For assembly, follow the instructions relating to the
version of the module owned.
Assembly on plate
The fastening holes of the CAN-IO module have a diameter
of 4.5 mm. Figure 17 shows the positions of the holes on
the various models of module. Figures 5 and 6 show the
distances between the centres of the fastening holes. The
spacer for connection with the plate must have a minimum
length of 12 mm.
For correct assembly, it is necessary to use all the fastening
holes envisaged on the card.
Figure 7 - Fastening hole position
Assembly on DIN runner
The card can be tted with two hooks for tting to 35 mm
DIN runners. To fasten the card in place, insert the upper part
of the hook over the runner, turn the card and press it until it
clicks into place, hooking also under the runner.
Figure 8 - Assembly on DIN runner
To remove a card fastened to a DIN runner, release the 2
lower hook, levering slightly with a screwdriver and turning
the card to release it.
Figure 9 - Dismantling from DIN runner
Positioning
The CAN-IO module is installed vertically on the long side or
the short side. In this second case, the power connections
and CAN have to face downwards.
The module cannot be installed horizontally.
Figure 10 - CAN-IO assembly direction

18 80990B_MHW_CAN-IO_12-2016_ENG
CAN-IO module connections
Figure 11 shows a general card with type 1 I/O connectors.
Depending on the customer’s requirements, the card may also
have been supplied with other types of connector.
The use of the single connector is identied by its silkscreened
details.
Tipo 1
Tipo 2
Tipo 3
Figure 12 - Types of I/O connector
Connectors, signals and conguration element
Figure 11 - CAN-IO module element position
N� Description Connector / indicator Note
1 Power Yellow LED
2 Run Green LED programme running
3 Power input 24 Vdc ± 25% Terminal block
4 CAN Port DB9 M (D-sub 9 pin male)
5 CAN Run Green LED
6 CAN Fail Red LED
7 CAN termination Switch
8 CAN address hundreds selection Switch
9 CAN address tens selection Dial
10 CAN address units selection Dial
11 I/O connections
12 Plate fastening holes
13 Relay connections only in CAN-IO modules with relay
Power
The CAN-IO module must be connected to a 24 Vdc power
supply unit. The same 24 Vdc power supply can feed several
devices (controller and CAN-IO modules).
Make sure that the current issued by the power supply is
higher than the total maximum current absorbed by all the
devices connected.
+VI24
GNDI
Figure 13 - CAN-IO module multiple power supply

1980990B_MHW_CAN-IO_12-2016_ENG
Considering that the device has no switch, it is necessary to
install one before it, with a protective fuse.
The switch has to be positioned in the immediate vicinity of
the device and be easy for the operator to reach.
For the 24 Vdc power supply unit, use a separate line from
that used for electromechanical power devices such as relays,
contactors, solenoids, etc.
If there are considerable changes in the mains voltage, use
a voltage stabiliser.
Near to high frequency generators or arc welders, use
adequate grid lters.
Connect the power cables to the power connector.
Fit the cylindrical nucleus in ferrite, supplied with the product,
as close as possible to the device to limit the susceptibility of
the device to electromagnetic disturbance (gure
14).
The 24 Vdc power supply cables must follow a separate path
from the power cables of the plant or machine.
1 2 3
FERRITE
+24 Vdc ±25%
700 mA max
+ -
+VI24 GNDI
Figure 14 - CAN-IO power connection
Attention: Amake sure that the earth connection is
ecient. A non-existent or inecient earth connection
can make the operation of the device unstable, due
to excessive environmental
disturbance. In particular, check that:
• the voltage between ground and earth is <1V;
• the ohm resistance is < 6 Ω.
CAN
Connect the cable for the CAN eld bus.
The CAN bus connects the CAN-IO modules to the Integrated
Controller and Operator Panel.
Considering that the CAN port is opto-isolated, it is not
necessary to disconnect the power to the device before
connecting it.
For the wiring of the line, use an approved cable.
Fasten the cable connector to that of the controller with the
appropriate screws.
1
9
Pin Name Description
1
2 CAN_L CAN-Low (CAN-)
3 GND Ground (mass)
4
5 EARTH Earth
6
7 CAN_H CAN-High (CAN+)
8
9
The CAN-IO module is equipped with a line termination.
Attention: if the module is the latest device on the
CAN line, activate the termination, switching both
switches to ON (see gure 15).
The CAN-IO module leaves the factory with the
termination deactivated (OFF).
1 2 1 2
OFFON
ON ON
Figure 15 - Switch for CAN line termination
The CAN line must be terminated at both ends.
If the device at the end of the CAN line is not equipped with its
own termination, it is possible to terminate the line installing
a resistor (120 Ω, 1/4W, tolerance 5%), as shown in gure 16.
120 Ω
1 2 ... 1 2
ON
Figure 16 - CAN bus line terminations

20 80990B_MHW_CAN-IO_12-2016_ENG
Identication of inputs and outputs
The inputs and outputs of the module are identied on the card with the following codes:
Code Interval Description
+VI24 Card power +24 Vdc
GNDI Ground (0 V)
PSx+ from PS1+ to PS3+ Digital power, positive pole
PSx- from PS1+ to PS3- Digital power, reference pole
DGND Reference ground for digital pins
AGND Reference ground for analogue pins
Functional earth
DIx from DI1 to DI24 Digital input
HSC_x from HSC_1 to HSC_6 Fast digital input
POTx+ from POT1+ to POT8+ Potentiometer input, positive pole power
POTx- from POT1- to POT8- Potentiometer input, reference pole power
POTxS from POT1S to POT8S Potentiometer input, signal
SGx+ from SG1+ to SG8+ Electric resistance extensometer input, positive pole power
SGx- from SG1- to SG8- Electric resistance extensometer input, negative pole power
SGxP from SG1P to SG8P Electric resistance extensometer input, positive pole
SGxN from SG1N to SG8N Electric resistance extensometer input, negative pole
TCx+ from TC1+ toTC10+ Thermocouple input, positive pole
TCx- from TC1- toTC10- Thermocouple input, negative pole
RTx+ from RT1+ to RT10+ Thermo resistance input PT100, positive pole
RTx- from RT1- to RT10- Thermo resistance input PT100, negative pole
RTxC from RT1C to RT10C Thermo resistance input PT100, third wire
RTKx+ from RTK1+ to RTK10+ Thermo resistance input PT1000, positive pole
RTKx- from RTK1- to RTK10- Thermo resistance input PT1000, negative pole
RTKxC from RTK1C to RTK10C Thermo resistance input PT1000, third wire
DOLx from DOL1 to DOL16 Digital output 0,5 A / PWM output
DOHx from DOH1 to DOH16 Digital output 2 A
HSO_x from HSO_1 to HSO_8 Fast digital output
AOVx from AOV1 to AOV8 Analogue output in voltage
AOCx from AOC1 to AOC8 Analogue output in current
ROx from RO1 to RO8 Relay output
Com ROx Relay output, common pole
Heading the wires
The wires are not insulated. When using type 1 or 2 connectors it is optionally possible to head the wires
with cable sockets