Programmable logic controller

FIG. 1 is a front, bottom and left side perspective view of a programmable logic controller showing my new design;

FIG. 2 is a rear, top and right side perspective view thereof;

FIG. 3 is front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a left side elevational view thereof;

FIG. 9 is a front, bottom and left side perspective view thereof showing a condition in which the first and second covers for an addition terminal block are removed;

FIG. 10 is a front elevational view thereof showing a condition in which the covers are opened;

FIG. 11 is a front elevational view thereof showing a condition in which the first and second covers for an additional terminal block are removed;

FIG. 12 is an enlarged front, bottom and left side perspective view of a removed first cover thereof; an enlarged front, bottom and left side perspective view of a removed second cover being identical;

FIG. 13 is an enlarged rear, top and right side perspective view of a removed first cover thereof; an enlarged rear, top and right side perspective view of a removed second cover being identical; and,

FIG. 14 is a front elevational view thereof showing a condition in which the light emitting diodes and display characters are actuated.