This thesis presents the performance of Remote Terminal Units (RTU) for the purpose of rail traffic management according to CENELEC SIL 4 standard. The first part describes the end-user requirements and standards, which requires specific knowledge of rail traffic, writing extensive documentation throughout the project, the use of methods to ensure high safety, required by standards, and the crucial importance of diagnostics through the CTC TRIS SIL4 system. The second part presents the SilWorks software and the Hima hardware, a software solution of the RTU performance with special emphasis on the communication between RTU and servers with POLL solution and Cyclic Redundancy Check (CRC), presentations of the CSV tables, that help the SilWorks program to generate automatically according to the given data upon importation into SilWorks program, and at the end an example of testing the program.
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