Programmable logic controllers: architecture and applications

Part 1 The idea of programmable logic: automation - objectives, functions and technologies the contribution of industrial programmable logic controllers. Part 2 Architecture of programmable logic controllers: the processor the central memory operation of the central processor the idea of a cycle memories - technological aspects multiprocessor PLCs industrial input - output security of operation. Part 3 The environment of programmable logic controllers: the idea of configuration man-machine dialogue and communication the programming console operating consoles peripheral and auxiliary devices of logic controllers communication and networks. Part 4 The software of industrial PLCs: functional analysis of PLC software a "problem-oriented machine" forms of PLC language the base language of the PLC extensions of the base language the sequential language of the PLC instructions for arithmetic and special functions the arithmetic language of the PLC communication and networks. Part 5 Methodology of utilization of the PLC: realization on the PLC of some basic functions the state-transition control graph - GRAFCET GEMMA - the design guide for functional and halt modes the application of the PLC - some complementary element. Part 6 Evaluation and choice of a PLC: the PLC market technical and economic aspects of the PLC suppliers, users and commercialization elements of choice of an automation technology criteria of evaluation of the PLC the choice of a programmable logic controller.