Patent ID: 6160528
Filing Date: 2000-12-12
Classification: G06F,G09F

Abstract:
A display apparatus for providing a centralized display of conditions of a plurality of inputs-outputs of at least one of a plurality of input-output modules and a plurality of couplers, the apparatus mounted on a programmable logic controller having the at least one of the plurality of input-output modules and the plurality of couplers, said display apparatus comprising:a diode matrix including a plurality of diodes, said plurality of diodes driven by an integrated display control circuit linked by a series connection to a digital-Boolean processor of said programmable logic controller, wherein said diode matrix is divided into a plurality of first zones of diode sub-matrices; anda base electronic board which holds said diode matrix and said integrated display control circuit, said base electronic board linked via said series connection to a mother board of the programmable logic controller, said base electronic board situated behind a plastic label plate including numbers of grouped inputs-outputs in second zones which correspond to a group of said first zones of said diode matrix, said label plate situated behind an external, transparent plastic protective cover.