Programmable controller with input/output signal converting circ

Details Programmable controller with input/output signal converting circ Programmable controller with input/output signal converting circ

1991-02-28

1993-06-08

Richardson, Robert L.

Optical waveguides

With optical coupler

Particular coupling structure

385 31, G06F 1300

Patent

active

052186792

ABSTRACT:
A programmable controller with an I/O signal converting circuit having an input element and an output element, comprises a signal I/O unit having a plurality of element sockets capable of replaceably accommodating both the input element and the output element; a selecting unit for selecting the type of the accommodated element; and a signal storing and sending unit. Each element socket may accommodate the input and output elements. Therefore, the space required to install the I/O circuits is reduced, and the number of input and output elements can be arbitrarily set.

REFERENCES:
patent: 3549783 (1970-12-01), Bendrick et al.
patent: 4771403 (1988-09-01), Maskovyak et al.
Newark Industrial Electronic Catalog No. 70-1970.

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