K2
16 Safe Digital Inputs for d-SC
Main Features
- 16 digital inputs, 24 V, 48 V, 72 V, 96 V, 110 V
- 1 to 10 mA, pulsed
- Optical isolation from other cards
- Fail-safe board architecture
- Certified to EN 5012x (SIL 2/4), EN 50159, IEC 61508 (SIL 2/3)
- Developed acc. to EN 50129, EN 50128, IEC 61508
- Extensive supervision functions
- EN 50155 fully compliant
- -40 °C to +85 °C
- Conformal coating
Digital Inputs for d-SC
The K2 is a safe digital input card for use in the duagon SAFE CONTROL (d-SC) System. The d-SC platform performs safe train control functions in rolling stock applications like Automated Train Protection (ATP) or CBTC (Communications Based Train Control). It usually consists of a controller system, e.g., MH50C, and safe remote I/O boxes, e.g., KT8. The K2 can be plugged into any of these systems, with one card providing 16 safe digital inputs.
Safe Communication (EtherCAT and FSoE)
d-SC I/O boards are EtherCAT slave devices, connected to the host via a backplane EBUS link. On top of EtherCAT, a safety layer called FSoE (Fail Safe Over EtherCAT) provides safe real-time Ethernet communication between the host system and the I/O board.
Made for Rail I/O Functions
The K2 inputs are voltage sensitive and are typically connected to digital outputs of other systems or to relay contacts. The I/O card provides functional safety: it enters the safe state if it detects an error. Front I/O is connected via a 24-pin PCB plug for fast installation thanks to reduced wiring.
Safety-Certified
The K2 is certified to CENELEC standards EN 50128 and EN 50129. The board is developed in a SIL 4 process according to EN 50128 and EN 50129. The systematic capability of the K2 is SIL 3 according to IEC 61508. However, to control a SIL 4 function according to EN 50128 and EN 50129 or SIL 3 function according to IEC 61508, the system design must provide a second K2 input board or another separated way to evaluate the status of the external signal. All d-SC I/O components come with dedicated certification packages from TÜV SÜD, reducing the integrator's certification effort and risk, and resulting in lower integration costs.
EN 50155 Rolling Stock Compliance
Being usable in all types of different trains optimizes the card's interoperability. It supports operating temperatures of -40 °C to +85 °C according to EN 50155. Standard boards include conformal coating. With full EN 50155 compliance and long-term availability on the market of 10 years minimum from the start of series production, the K2 is a rail-ready I/O component. If required, the K2 can also comply to Railways (Wayside) standard EN 50121-4 and Industrial standard EN 61000-4-5 by connecting an external EMC suppressor circuitry.
Safe Software Concept
All d-SC components are supported by certified QNX BSP and driver software. Application software accesses the K2 via the PACY software framework (Process Data Framework for Cyclic Applications). Its API allows the application to control and monitor all features of the K2.
- 16 channels
- Input voltage
- 24 V, 48 V, 72 V, 96 V, 110 V nom. (EN 50155)
- Input current
- 1 mA to 10 mA, pulsed
- Switching threshold relative to reference voltage
- Programmable input filter
- Digital I/O
- 1x 24-pin PCB plug
- 16x digital input
- Ethernet
- 2x Real-Time Ethernet, ETG.1000 EBUS EtherCAT, backplane
- d-SC FSoE
- Slot ID and chassis ID for unique FSoE address, backplane
- Status LEDs
- Binary channel status, one LED per channel
- I/O error
- FSoE activity
- Real-time Ethernet error
- Real-time Ethernet state indication
- Check for overvoltage, undervoltage, excess temperature
- Watchdog
- Monitor self-test
- Clock monitoring
- Supply voltage
- +12 V (10.8 to 13.2 V)
- Power consumption
- 1.6 W typ.
- 2.6 W max.
- Dimensions
- 100 mm x 100 mm, 4 HP
- Weight
- 202 g (model 06K002-10)
- Cooling concept
- Air-cooled, airflow 0.5 m/s
- Compliance level: The product is tested and qualified on product model level. Compliance varies between different product models.
- Operating temperature: -40 °C to +70 °C (EN 50125-3:2003, class T2, cubicle, with class T2 maximum extended by 5 °C)
- Storage temperature: -40 °C (EN 60068-2-1:2007, Ab) to +85 °C (EN 60068-2-2:2007, Bb)
- Altitude: +3000m max. (EN 50125-3:2003, class AX)
- Humidity: 100 % RH max. (EN 50125-3:2003, shelter N.C.C., class T1/T2/TX) Non-condensing
- Pollution degree: EN 50124-1:2017, class PD3
- Overvoltage category: EN 50124-1:2017, class OV1
- Shock: 11 ms @ 20 m/s² (EN 50125-3:2003, in a switch cabinet 1 m to 3 m from the track)
- Vibration: 2.3 m/s² (EN 50125-3:2003, in a switch cabinet 1 m to 3 m from the track)
- Electrical safety
- EN 50124-1:2017
- EN 62368-1:2014 + AC:2015
- EMC emission
- EN 50121-4:2016
- EN 61000-6-4:2007 + A1:2011
- EN IEC 61000-6-4:2019
- EMC immunity: EN 50121-4:2016
- Fire protection: for compliance to EN 62368-1:2014 + AC:2015 a fire enclosure is required
- Compliance level
- The product is tested and qualified on product model level. Compliance varies between different product models.
- The product is prepared for use in EN 50155 systems. Some parameters are system-dependent and are specified on system level.
- Operating temperature: -40 °C to +70 °C, +85 °C for 10 min (EN 50155:2021, class OT4, ST1)
- Rapid temperature variations: EN 50155:2021, class H1, no requirements
- Storage temperature: -40 °C (EN 50155:2021) to +85 °C (EN 60068-2-2, Bb)
- Altitude: +3000 m max. (EN 50125-1:2014, class AX)
- Pollution degree: EN 50124-1:2017, class PD2
- Overvoltage category: EN 50124-1:2017, class OV1
- Humidity: +55 °C and +25 °C, 100 % RH max. (EN 50155:2021)
- Shock: 30 ms @ 50 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B)
- Vibration: 10 min @ 2.02 m/s² (functional) and 5 h @ 11.44 m/s² (long-life) (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B, double acceleration)
- Electrical safety
- EN 50155:2021
- EN 50153:2014 + A1:2017 + A2:2020
- EN 50124-1:2017
- EN ISO 13732-1:2008
- Fire protection: EN 45545-2:2020, EL9, HL3
- EMC emission: EN 50121-3-2:2016 + A1:2019
- EMC immunity: EN 50121-3-2:2016 + A1:2019
- Protective coatings: EN 50155:2021, class PC2 (Any PCB protected on both sides)
- Useful life: 20 years (EN 50155:2021, class L4)
- 703 682 h @ 40°C according to IEC/TR 62380 (RDF 2000) (model 06K002-10)
- Certifiable to SIL 2 with single channel according to EN 50129
- Certifiable to SIL 4 with dual channel according to EN 50129
- Hazard rate (HR=PFH) for safety functions <= 7E-8 / h (single card configuration)
- SIL 2 according to IEC 61508 with single channel (HFT=0)
- SIL 3 according to IEC 61508 with dual channel (HFT=1)
- SFF > 92% according to IEC 61508
- Board maintains safe state after a failure
- PACY (Process Data Framework for Cyclic Applications)
- QNX
Standard Models
Systems & Card Cages
The product consists of the 40 HP basic system including backplane and mounting rails and provides:
- 1 slot for PSU
- 1 CompactPCI PlusIO slot for the CPU board
- 6 CompactPCI peripheral slots
- 1 CompactPCI peripheral slot reserved for F305
The barebone configuration comprises a number of standard, non-configurable components such as the PSU and CPU board. I/O boards are completely configurable. The Technical Data list all components that can be implemented in the system. Choose the functionality you need and contact duagon's sales team to verify which board combinations are feasible.
- 1 slot for I/O head
- 8 d-SC I/O board slots
The barebone configuration comprises the standard I/O head component including the EtherCAT connection and PSU. I/O boards are completely configurable. The Technical Data list all components that can be implemented in the system. Choose the functionality you need and contact duagon's sales team to verify which board combinations are feasible.
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