Patent ID: 9104383
Filing Date: 2015-08-11
Classification: G06F,H05K,Y10T

Abstract:
1. A programmable logic controller, comprising: a bottom housing comprising a base, a first plurality of alignment features, and a first plurality of attachment features; an upper housing comprising a second plurality of alignment features and a second plurality of attachment features, wherein a first pair of the second plurality of alignment features are slidably engaged with a first pair of the first plurality of alignment features and wherein the first pair of the first plurality of alignment features are asymmetrically positioned relative to the base, and wherein a first pair of the first plurality of attachment features is coupled with a first pair of the second plurality of attachment features; and a central processing unit board positioned between the lower housing and the upper housing, the central processing unit board comprising a first pair of receptacles coupled about a second pair of the first plurality of alignment features, wherein the second pair of the first plurality of alignment features are asymmetrically positioned relative to the base.