Maturity assessment of ITER diagnostics plant instrumentation and control design

Abstract ITER requires extensive diagnostics to meet the demands for machine operation, protection, plasma control and physics studies. The interfaces between plant instrumentation and control (I&C) and the central control system follow mandatory rules described in the Plant Control Design Handbook (PCDH) [1] , while the design strategy for PCDH compliant plant I&C is covered in its guidelines and supported by hardware catalogues. During preliminary and final design review as well as factory and site acceptance testing it is therefore important to determine the maturity of the I&C design and its implementation to ensure its compliance with the PCDH and the diagnostics performance requirements.