27th IEEE Symposium on Fusion Engineering

CODAC Core System for ITER plant system I&C

8 Jun 2017, 16:00

20m

Salon 2

Oral Project management, systems engineering R.OP5: Experimental Devices II

Speaker

Mr Franck Di Maio (ITER Organization)

Description

Construction of the ITER project is distributed among its many members. The ITER plant systems are built including their local controls by many partners all around the world, to be delivered as in-kind contributions to the ITER site after factory acceptance testing. A total of 171 separate Instrumentation and Control (I&C) sub-systems, for power supplies, cooling water, cryogenics, magnets, fuelling, vacuum, vacuum vessel and cryostat, heating systems, diagnostics, etc. are currently being designed and manufactured for ITER, covered by 101 procurement arrangements. After delivery, these systems will be tested, integrated and maintained by the ITER central team for the commissioning and operation of the tokamak device.

To cope with this level of work distribution and the resulting integration risks, the ITER Control System Division has developed and maintained standards for ITER I&C, defined in technical specifications and supported by services, covering hardware procurement as well as software design and development.

One of these services is to provide the suppliers with a dedicated software distribution, named CODAC Core System (CCS), comprised of frameworks, tools and components for developing the plant system I&C according to the ITER defined standards. This software distribution is based on RedHat Enterprise Linux as operating system and EPICS as control system framework. Onto this, it adds control software either developed by the ITER Organization or specifically adapted for our requirements from existing solutions. CODAC Core System has been released at least twice per year since 2010, with increased functionality, stability, and completeness. In parallel, the quality control mechanisms have been developed that allow reaching the required integrity levels, and the support organization has been adapted to cope with the increasing user assistance requirements.

This paper describes the technical and organizational solutions adopted for enhancing homogeneity in the ITER Instrumentation and Control (I&C) software and improving control over its development and tests. It also reports observed results in the current development and test activities and presents the roadmap towards commissioning and operation.