SC3
AUTOMATION
SA F E T Y P R O D U C T P L AT FO R M
At SC3 Automation, our priorities are
customer satisfaction and a
strong safety culture
FAST TRACK SAFETY
CRITICAL PROJECTS
SC3
AUTOMATION
SAFETY PRODUCT PLATFORM
DESIGNED FOR RAIL
SAFE T Y P R ODUCT P LATFO RM
TECHNOLOGY THAT
MEETS SAFETY STANDARDS
The Safety Product Platform meets the requirements of the
CENELEC European standard (EN 5012x and EN 50155), and
North American AREMA section17 class II, eCFR49 part 229,
subpart E, part 236, subpart H.
EXAMPLES OF TARGETED
SIL 4 APPLICATIONS
Unauthorized reverse movement
Operator alertness
Overspeed protection
Dynamic speed limitation
Prevention of unplanned or uncontrolled movement
Accurate train location information
Wayside applications
TECHNOLOGY
The Safety Product Platform technology:
Implements Vital safety functions or meets safety
requirements up to SIL 4
Reduces safety product development cost
Reduces time to market
Facilitates integration between old components
and new technology
SPECIFICATIONS FOR RAIL
Digital I/O 24 V AC and DC up to 115V AC and DC signals
Support for Analog signals input and output (4-20mA, 0-20 mA, 0-10V, -10 to + 10 V)
PWM, pulse counters
Four Quadrature encoders for speed and direction of axle pulse generators
Redundant SERIAL (RS232, RS422, RS485)
Redundant CAN
Redundant Ethernet communication ports. Support for Modbus® TCP, EtherCAT®,
EtherNet/IP™, and railway communication protocols.
Redundant power supply, 8-36 VDC
Ambient temperatures surrounding PCA ( -40 deg C to +85 deg C)
Capable of supporting surge and interruption of voltage supply
as per EN 50155 Class S2 10 ms
Compact and modular
Designed for standalone or distributed architectures
Installed IN CAB or outdoors.
Channel-to-channel Galvanic isolation 500V DC
Designed to fit in various enclosures including 3U cassettes
SC4NODE
STATE OF THE ART
SAFETY PRODUCT DESIGN
SYSTEM ARCHITECTURE
The SC4Node modular approach has a rapid response time.
As the application grows, the number of SC4Nodes increases and the IO mix adapts to the application needs.
Node connections are seamless; system performance remains constant despite the increase of the number of nodes and IOs.
The Ethernet connection capability between two SC4Nodes provides fast communication enabling the design of a
distributed and modular safety control system. Implement safety functions on a single Node or across multiple Nodes.
SC4NODE TOPOLOGY FOR TRACKSIDE
SC4NODE
SC4NODE TOPOLOGY FOR ONBOARD
SC4Node is a SIL 4 Safety controller for rolling stock and signaling. This Safety controller
can be used standalone or as a network of controllers. The SC4Node controller is based on the
SC3 Automation Safety Product Platform technology. The MCB11 and companion MCB12 controller
boards are combined to meet the SIL 4 requirements. IO boards complete the controller to address
specific application needs.
MAIN CONTROLLER BOARD (MCB11)
The MCB11 is a SIL 3-capable Safety controller board. This controller board combined with our IO
boards is the basis of your new safety controller. Available for use "as is" or customized to meet your
specific requirements. The MCB11 offers redundant Ethernet, redundant CAN, and redundant Serial
ports in addition to a SIL 3 Master Disconnect Output. The MCB11 includes a SIL 3 Safety controller
and an industrial communication board. The MCB11 supports the EtherCAT®, EtherNet/IP™, Parallel
Redundancy Protocol (PRP), and MODBUS® TCP protocols.
MAIN SAFETY
PROCESSOR
High-speed 300MHz
Safety processor
512KB ECC internal RAM
64MB ECC external RAM
4MB ECC Program flash
64Mbytes serial flash
2kbits EEPROM
512kbytes SPI MRAM
Real-time clock with either
Lithium battery (-40° to
+125°C) or Supercapacitor
(-40° to +85°C)
Supports two IO boards
COMMUNICATIONS
CO-PROCESSOR
1.0GHz multicore processor
64Gb (8M x 8) eMMC
4 Gbits (256M x 16) DDR3L
SDRAM
8MB Flash NOR 133MHz
Quad SPI
2Kb I2C EEPROM
COMMUNICATION
PORTS
Two universal Serial ports:
RS-232, RS-422, RS-485
(galvanically-isolated)
Two CAN ports
(galvanically-isolated)
Two Ethernet ports
10/100Mbps
Support two IO boards or 1 IO
bord and 1 Companion
controller board
ENVIRONMENTAL
(COMPLIANT TO EN 50155∶2017)
Temperature rating
(in case): -40°C to +85°C
(OT6 according to
EN 50155∶2017)
PCB heater for
temperatures below
-40°C operation
Conformally coated
Power consumption:
7W; 8 to 36 V DC
Redundant power supplies
Altitude up to 4000 meters
FORM FACTOR
Eurocard format
(100mm x 160mm)
MCB12 COMPANION CONTROLLER BOARD
The MCB12 is the companion Safety controller for use with the MCB11 controller board to meet the
requirements of SIL 4 according to EN 50129 and implement Vital functions as per AREMA section 17.
This Safety controller offers redundant CAN and redundant Serial ports, all
galvanically isolated. This controller also includes a SIL 4 Master Disconnect Output.
MAIN SAFETY
PROCESSOR
A 300MHz Safety processor
512KB ECC internal RAM
64MB ECC external RAM
4MB ECC program flash
64Mbytes Serial flash
2kbits EEPROM
512kbytes SPI MRAM
Real-time clock with either Lithium battery
(-40° to +125°C) or Supercapacitor (-40° to +85°C)
Supports two IO boards
COMMUNICATION
PORTS
Two Universal Serial ports:
RS-232, RS-422, RS-485
(galvanically-isolated)
Two CAN ports
(galvanically-isolated)
One RJ45 Ethernet port
Two diverse three-axis
accelerometers
Two force guided relays for
master disconnect
ENVIRONMENTAL
(COMPLIANT TO EN 50155∶2017)
Temperature rating (in case):
-40°C to +85°C (OT6)
PCB heater for temperatures
below 40°C operation
Conformally coated
Power consumption:
7W; 8 to 36 VDC
Redundant power supplies
Altitude up to 4000 meters
FORM FACTOR
Eurocard format (100mm x 160mm)
UNIVERSAL DIGITAL
IO BOARD
DIGITAL DOUBLE
CUT IO BOARD
RELAY
IO BOARD
The Universal Digital IO (UDIO) board is
designed to work with our SIL 3-capable
MCB11 Safety controller and our SIL4
capable controller board assembly.
This board has eight channels with
channel-to-channel Galvanic isolation.
Each channel can function as an input or
an output. The UDIO board supports 24 to
110V AC or DC. The board can also be used
as a Pulse Width Modulation (PWM) or
pulse counter.
Digital Double Cut IO board is designed to
work with our SIL 3 capable MCB11 Safety
controller and our SIL4 capable Controller
board assembly. This board has eight
channels with channel-to-channel Galvanic
isolation. Each channel can function as an
input or as a double cut output that
switches the high side and the low side
of a load. The DIODC board supports 24 to
110V AC or DC. The board can also be used
as a Pulse Width Modulation (PWM) or
pulse counter.
Relay IO board is designed to work with
our SIL 3 capable MCB11 Safety controller
and our SIL4 capable Controller board
assembly. This board provides a sample
of the specialized IO boards we can
design with the Safety Product Platform.
The RIO board has three SIL4 capable
24-110V DC double cut digital outputs
with positively guided relays, four
quadrature encoder inputs locomotive
tachometers, and two 0-20mA outputs
for speed indicators. The RIO has channel
to channel galvanic isolation.
DIGITAL INPUTS/OUTPUTS
Eight SIL 4 ASILD universal digital IOs
Software configurable to IEC 61131-2∶2017
compliant for these types:
High speed counter (DC/AC) (20 kHz)
DI 24V DC/AC Type 1 and Type 3
DI 115V DC/AC Type 1
DO 2A@24/115V DC/AC
Pulse-width modulation (PWM)
1500V channel-to-channel Galvanic isolation
DOUBLE CUT DIGITAL INPUTS/OUTPUTS
Eight SIL 4 ASILD universal digital IOs
Universal digital IOs output channels configurable as
double-cut or high-side cut architecture
Software configurable to IEC 61131-2∶2017 compliant for
these types:
High speed counter (DC) (20 kHz)
DI 24V DC Type 1 and Type 3
DI 115V DC Type 1 (EN 61373∶2010)
DO 2A@24/115V DC
Pulse-width modulation (PWM)
1500V channel-to-channel Galvanic isolation
RELAY INPUTS/OUTPUTS
Up to three relay output channels, four quadrature
encoder inputs, and two non-safe analog outputs
(0-20mA)
Relay output channels configurable as double-cut
or high-side architecture
Relay output 2A@24/115V DC
Encoder inputs configurable as counter inputs
Channels configurable as Pulse Width Modulation
(PWM)
1500V channel-to-channel Galvanic isolation
COMMON TO ALL IO BOARDS
ENVIRONMENTAL (COMPLIANT TO EN 50155∶2017)
Temperature rating (in case): -40°C to +85°C (OT6)
Altitude up to 4000 meters
Conformally coated
SC3
AUTOMATION
SAFETY PRODU CT P L AT FO R M
FORM FACTOR
Eurocard format (100mm x 160mm x 6.5mm)
CANADA Head Office
2390, rue Principale Ouest, Suite 1
Magog (Québec) Canada J1X 0J1
T. +1 819 870.2989 | Toll Free: 1 833 723.6633
E. info@sc3automation.com
© Copyright 2022, SC3 Automation Inc. All rights reserved.
AUSTRALIA SC3 Automation Pty Ltd
Suite 1, Level 1, 22-28
Edgeworth David Avenue
Sydney, New South, Wales, 2077, Australia
T. +61 (0) 2 8003 4363
E. info@sc3automation.com