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LION I/O Modules
▪
System Planning
13
4
System Planning
4.1
Safety Integrity Level
Depending on the application, the infrastructure modules can be used in a safety
application (up to SIL2). If the components are used in an environment which is
not SIL certified, the components cannot work as safety components.
The technical data for all modules can be found in the regarding operating
instruction.
4.1.1
Standards
Danger of life, serious injuries and property damages if planning a system
with an incorrect system architecture.
▪ Check the technical data of each module.
▪ Read the operating instruction, especially the system and product
description.
▪ Check the surrounding conditions of the operating place.
▪ Check, wether the modules are designed for the operating case and the
application.
▪ Qualified employees, especially experts like engineers ,should plan the
system.
SIL
relevant
LION-008
The safety life cycle, as well as the safety management process, is implemented
according to
▪
EN 50126:2000-03
Railway applications - The specification and demonstration of reliability,
availability, maintainability and safety (RAMS)
▪
EN 50128:2012-03
Railway applications - Communication, signalling and processing systems -
Software for railway control and protection systems and
▪
EN 50129:2003-12
Railway applications - Communications, signalling and processing systems -
Safety related electronic systems for signalling
The modules are devided into two classes:
▪
Class 1 – SIL0
The software on the modules is programmed according EN 50128
SIL0 regarding error prevention and organized procedures.
▪
Class 2 – SIL2
The hardware was developed according to EN 50129 SIL2.
The software on the modules is programmed according EN 50128 SIL0
regarding error prevention and organized procedures.