Author: Vaidya, U.W.
Paper Title Page
THIA01
Trombay Programmable Logic Controller TPLC-32  
 
  • U.W. Vaidya
    BARC, Mumbai, India
 
  Until recently Computer Based Safety and Safety-related Control and Instrumentation systems in Indian NPPs and other nuclear utilities were custom built embedded systems. This approach needs enormous development and verification & validation efforts. Further requirement change management during plant operation becomes intricate due to dependence on custom System Designer. Current scenario worldwide is development of such systems using Qualified Configurable, Programmable Platforms (PLCs) offering several advantages over custom built approach. Trombay Programmable Logic Controller TPLC-32 is one such qualified platform designed and developed in-house by Reactor Control Division, BARC. It facilitates configurable and programmable environment to build safety and safety related Control and Instrumentation Systems. TPLC-32 hardware is designed around 32 bit processor based in-house developed Single Board Computer on VME bus and intelligent Input/Output modules on proprietary I/O bus. The hardware design is carried out as per IEC60987 standard. The Platform software development is carried out following well documented, well controlled, fully reviewable software engineering process based on AERB SG-D25 guide and IEC 80880 standard including verification and validation by an independent team. The Application Development Environment (ADE) software package of TPLC-32 facilitates defining complete system configuration and application development in the form of function block diagrams based on IEC 61131-3 standards. Platform architecture, development process, platform salient features and C&I system developed using TPLC-32 platform will be discussed in the talk.  
slides icon Slides THIA01 [10.851 MB]