Rossato CSC-8IO Reference manual
Relay board CSC - 8IO - Manual of installation and use
Following instructions are addressed both to the installer and to the final user who need respectively to install and to use the
product. Failure to observe the indications present in this manual involves the customer in exclusion from warranty.
Following instructions contain essential and important information for a safe and perfect installation and are an integral and
essential part of the product. Therefore the entire technical documentation must be always kept close to the product.
All data and instructions contained in the present manual are referred to actual technology level. Please always consult the
instructions contained in the present manual when installing the unit.
The activities described in this manual need specialistic knowledge and professional experience in installation. By
consequence it is necessary that mounting operations described are made only by personnel with indicated technical
requirements.
Schemas used are only a rough guide, have no pretensions to be complete and cannot replace the project.
Even if this manual has been realized with maximum care, mistakes and updates are possible; Rossato Group Srl will not be
responsible for inaccuracies and omissions.
© The contents, images, texts and layout of this document are the property of Rossato Group srl and may not be reproduced
in whole or in part without written permission.
The data and warnings in the Technical Documentation are not intended to be complete and do not replace the professional
design. Subject to technical changes and errors.
TRANSLATION OF ORIGINAL IN ITALIAN LANGUAGE
Relay board CSC 8IO_EN_1.00
Pag. 2 di 8
Rossato Group Srl
Relay board CSC - 8IO - Manual of installation and use
Table of contents
1.General instructions
1.1 General information
1.2 Content of the manual
1.3 Warranty
1.4 Description of symbols
1.5 Service regulations
2. Installation
2.1 Mounting
2.2 Power connection
2.3 Bus connection
3. Technical information
3.1 Technical features
4. Disposal
4.1 Disconnection
Relay board CSC 8IO_EN_1.00
Pag. 3 di 8
Rossato Group Srl
Relay board CSC - 8IO - Manual of installation and use
1.General instructions
1.1 General information
Maintenance
Provide for periodic inspections and maintenance to avoid and limit repair costs.
Disconnect the voltage before any intervention.
Modifications
Any type of modification to the unit will void the manufacturer's warranty and liability.
Fault or malfunction
Immediately turn the component off in case of failure or malfunction.
Contact an authorized service center or the local dealer.
Using the sensor when there is a failure or malfunction:
❏voids the warranty.
❏can compromise system safety
❏can increase cost and repair time
Data update
Continuous product improvements may cause variations in the data shown in this manual.
Refer to www.rossatogroup.com for updated data.
1.2 Content of the manual
The user and installation manual describes the installation and connection procedures for the CSC 8IO
board with digital inputs and outputs, 1-wire temperature sensor inputs and analog outputs. It uses
Modbus RTU (RS485) as a communication protocol. DIN rail mounting.
1.3 Warranty
The unit is warranted in accordance with contractual agreements made at sale. The warranty certificate
is supplied with the unit in paper format and is available at www.rossatogroup.com.
1.4 Description of symbols
1.5 Service regulations
The service regulations described in this manual are an integral part of the supply.
Furthermore, these standards are intended for the operator who has already been specifically trained
to operate this type of unit and contain all the information necessary and indispensable for the safe
operation and optimum use of the unit.
Hasty and deficient preparations force improvisation and this is the cause of many accidents.
Relay board CSC 8IO_EN_1.00
Pag. 4 di 8
Rossato Group Srl
DANGER:
This symbol indicates rules to prevent users from accidents. Failure to observe these
instructions can result in serious damage to humans, objects, plants or animals and to the
device itself.
CAUTION:
Failure to observe these instructions can result in serious damage to the device and to the
system.
NOTE:
This symbol indicates useful information.
Relay board CSC - 8IO - Manual of installation and use
Please read the following instructions carefully and respect them
❏When installing or servicing the unit, be sure to follow the instructions in this manual and take all
necessary precautions;
❏do not remove or deteriorate protections, labels, and markings, especially those required by law,
and replace them if they are no longer legible.
The laws, regulations, prescriptions, ordinances, directives in force for such devices have been
observed.
The materials used and the equipment parts, as well as the manufacturing, quality assurance and
control procedures meet the highest demands for safety and reliability.
Using them for the purposes specified in this owner's manual, operating them with due care and
performing thorough maintenance and overhaul in a workmanlike manner will help maintain the units'
continued performance and service life.
2. Installation
2.1 Mounting
The controller should be installed and stored in a dry location on a DIN rail. Do not install in humid,
corrosive, or dusty environments.
2.2 Power connection
The 8IO relay board is supplied with 24Vdc or 24Vac.
2.3 Bus connection
The device is equipped with an RS485 serial interface with Modbus RTU communication protocol.
Use a shielded single pair twisted pair cable that complies with EIA RS 485 standards. Belden 9841
cable is recommended.
Modbus connections must be input-output type. Avoid star connections.
Pay attention to correctly connect poles "A" and "B" of the communication cable, without ever inverting
the wiring of pole "A" and "B", make the connections as shown in the following figure:
Relay board CSC 8IO_EN_1.00
Pag. 5 di 8
Rossato Group Srl
DANGER:
Initial start-up must be performed only by the dealer or by qualified personnel authorized
by the manufacturer.
CAUTION:
All operators must comply with international accident prevention regulations and those of the
country of destination of the unit in order to avoid possible accidents.
DANGER:
Before connecting the device to the mains, make sure that you have complied with all the
wiring recommendations in this technical annex, as well as with the rules of good electrical
panel assembly technique.
Relay board CSC - 8IO - Manual of installation and use
Relay board CSC 8IO_EN_1.00
Pag. 6 di 8
Rossato Group Srl
CAUTION:
Connect a 150 Ohm resistor between A and B of the last modbus device connected in the bus.
DANGER:
●Specify Modbus cable RS485: Belden 9841.
●Specify power cable: bipolar cable with minimum cross-section of 0.35 mmq - maximum
0.50 mmq.
Relay board CSC - 8IO - Manual of installation and use
3. Technical information
3.1 Technical features
4. Disposal
4.1 Disconnection
Unit’s disposal should be made according to national laws.
Under no circumstances the unit must be disposed with ordinary household refuse.
Relay board CSC 8IO_EN_1.00
Pag. 7 di 8
Rossato Group Srl
Technical features
Power supply
24 Vac on clamps or Micro USB socket 5Vdc, 2.5 A
N° relays
8
Analog outputs
2 (0 .. 10V)
Analog inputs
2
1-wire temperature sensor inputs
3
Relay operating limits
250V AC/5A o 24V DC/5A
Environmental operating conditions
Temperature -20°C ~ 50°C
Storage
Temperature -20°C ~ 50°C
Mounting
Guide DIN 46277
Communication protocol
Modbus RTU
Protection degree
IP20
Dimensions
4 DIN modules
Dimensions (WxDxH)
72x95x58mm
Table of contents
Popular Relay manuals by other brands
Broyce Control
Broyce Control ELRV-30 quick start guide
sprecher + schuh
sprecher + schuh CA7-9 23 Series Installation instruction
Omron
Omron K8AB-PM Series product manual
ABB
ABB CM Series Operating and installation instructions
Pilz
Pilz PNOZ s4.1 operating manual
Rockwell Automation
Rockwell Automation Allen-Bradley 193-T1APM Installation instruction