Este livro apresenta os componentes b sicos de hardware e software de um controlador l gico program vel (PLC). Descreve a arquitetura geral e o conjunto de instru es b sicas comuns a todos os PLCs. S o abordadas as t cnicas b sicas de programa o e a l gica concebida. Descreve tamb m as caracter sticas de funcionamento do PLC, as vantagens do PLC em rela o aos sistemas de controlo com fios, as aplica es pr ticas, a resolu o de problemas e a manuten o dos PLC.
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