fail-safe remote i/o (SATURN) SIL2-SIL4

SATURN is a new platform featuring high-robustness and availability for safety solutions.

Easy to configure and efficient as a railway remote I/O management solution, this platform dramatically reduces the vehicle cabling architecture and its associated cost.

SIL0, SIL2 and SIL4 product range EN50155 – EN50129 – EN50128

• Saturn Datasheet

Documents and ISA* Certification

• Saturn communication protocol
• FPGA data

• Certificat EC 8565/0152
• Certificat EC 8565/0151
• Certificat EC 8565/0150
• Certificat EC 8565/0149

A range of I/O modules, which features

• Input/output nodes (digital inputs, static outputs, relay outputs and analogue I/Os).
• Railway EN50155 Modules (24-120Vdc)
• A single DIN41612 connector per node (IO + power + communication)
• EN50155 Railway modules (24-120Vdc)
• SIL4 available in 2016 or before on demand
• Safety integrity level : SIL0, SIL2 et SIL4.

A concentrateur/gateway

• The concentrator manages the ring network
• One-point communication between the platform and the end-user application
• Gateway functions for field bus (Ethernet, MVB, CAN, CANopen, RS422/RS485…)
• The concentrator supplies the electrical power to the ring network
• Safety logical functions can be integrated into the concentrator module
• A redundant concentrator used as backup module

An innovative ring network

• Two unidirectional reverse channels
• Redundant ring of power supply
• 1 ms deterministic cycle for 32 IO modules
• 100% network operability during a line failure
• Provider-consumer or master-slave protocol
• Safety protocol, internal and external
• Permanent diagnostic functions
• Up to 1.000 m between modules
• Up to 12 Mb/s for 100m repetition distance
• Up to 128 modules per ring
• Power supply of modules provided by the gateway

References

Recent partner’s references on i/o systems:

• PRASA – Afrique du sud (16000 unités déployées pour 3000 voitures)
• LRT – OttawaNS-74 – métro de Santiago
• Danemark (Architecture ERMTS)