Simulator uses Alpha multi-user system

Enhanced new graphic front end systems have now been supplied to Nuclear Electric for its Magnox power station training simulator at Oldbury, Bristol. The contract with system integrator, Scomagg, was worth £300,000. The system is really two – one to run, the other to develop the station training courses. It replaces existing equipment, and is […]

Enhanced new graphic front end systems have now been supplied to Nuclear Electric for its Magnox power station training simulator at Oldbury, Bristol. The contract with system integrator, Scomagg, was worth £300,000.

The system is really two – one to run, the other to develop the station training courses. It replaces existing equipment, and is said to increase the integrity, reliability and flexibility of the system.

It’s client-server, based on two DEC Alpha 1000 graphic servers – one providing the training graphical front end, the other the tutor’s interface. There are also some 15 NCD Xplora Pro X terminals as displays on the training system, and a further seven on the development side.

Both systems are linked by Ethernet, which also allows access to the static and dynamic real time simulated plant variables from the existing station Encore 93 computers which run the plant simulation models. Since the training system is the most critical, all hardware can be reconfigured semi-automatically over the LAN to run that side.

The Alpha servers have 128Mb RAM and run under Open VMS. They provide SLGMS CAD-type drawing facilities for creating animated graphic displays, mimics, etc, and an entirely menu- and mouse-driven tutor interface for creating problem scenarios.

The application software – including the multi-user, real time, event-driven training environment – was developed by Scomagg in C. Scomagg’s Mike Pyott, systems engineer, told Sys.Build: `The system was developed using our Yourdon methodology, which embraces every- thing from project analysis and requirements capture to the system design, programming and project management.

`We actually use the 3SL Cradle graphical point-and-click CASE tool. It fits very well with the structured approach, providing bubble diagrams, consistency checking, configuration control, report generation, etc.

{{Scomagg,Tel: 01709 820920; Fax: 828103.712 on enquiry card}}