NR SAO-IEC-HD-57 ISSUE 4 PDF

Introduction

The 68000-based simulator is an IECC subsystem which is intended to allow the IECC to be operated in an environment which is very similar to that of the real railway. It does so by functioning as a number of Solid State Interlockings (SSIs) which appear to be connected to a railway with trains operating in the usual manner. The simulator user is provided with a PC-based menu-driven interface, which provides facilities including the following:

(1) Modification of behaviour of trackside equipment.

(2) Creation of trains to timetable, including station stops and TRTS.

(3) Manual creation of trains; editing of parameters and stopping patterns of existing trains.

(4) Conversion of TTP timetables into simulator timetable data.

The simulator is intended for the following applications:

(1) Testing of IECC subsystems, particularly ARS, in a realistic manner prior to site commissioning.

(2) Familiarisation of operators with new track layout and working of new IECC before commissioning.

(3) Training to allow operators to react to unusual incidents and emergencies.

Like other IECC subsystems, the simulator program is not site-specific. Instead, the simulator is configured for a particular site application by the use of data.

The bulk of the data is taken from the Solid State Interlockings (or Relay Interlocking Interfaces) which will work with the new IECC. This data may simply be transferred to the simulator in object form, and its preparation is covered by reference 1.

Further data is required to describe to the simulated trains the path they must take across the track layout. This function is very similar to that provided by the SSI simulator. Hence, the IECC simulator has been made to use the SSI simulator data in object form. The preparation of this data is described in the reference 2.

Yet more data is necessary to control the functions which only the IECC simulator can provide - timetabled train operation and TTP timetable conversion. This data is documented in this Tutorial.

Data is also required to allow the user to control the operation of simulated trackside equipment and trains. It is largely converted automatically from SSI source data, but a certain amount of extra work is necessary and is described here.

This document is a tutorial. No attempt is made to define the syntax of the files themselves. Instead, a higherlevel description is given of the type of information which is required, and this is illustrated by actual examples, most of which are based on fragments of data files for the Shenfield simulator.