Programmable logic controller

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

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

FIG. 3 is a 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, left side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 10 is a rear, top, right side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 11 is a front elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 12 is a top plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 13 is a bottom plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 14 is a right side elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 15 is a left side elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 16 is a front, bottom, left side perspective view of another embodiment of a programmable logic controller showing our new design;

FIG. 17 is a front elevational view thereof;

FIG. 18 is a rear elevational view thereof;

FIG. 19 is a top plan view thereof;

FIG. 20 is a bottom plan view thereof;

FIG. 21 is a right side elevational view thereof;

FIG. 22 is a left side elevational view thereof;

FIG. 23 is a front, bottom, left side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 24 is a front elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 25 is a top plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 26 is a bottom plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 27 is a right side elevational view showing a condition in which the terminal block covers are opened thereof; and,

FIG. 28 is a left side elevational view showing a condition in which the terminal block covers are opened thereof.

The broken lines are shown in the figures for illustrative purposes only and form no part of the claimed design.