Adiscrete input, also referred to as a digital input, is an input that is eitherin an ON or OFF condition. Pushbuttons, toggle switches, limit switches,proximity switches, and contact closures are examples of discrete sensors whichare connected to the PLCs discrete or digital inputs. In the ON condition adiscrete input may be referred to as a logic 1 or a logic high. In the OFFcondition a discrete input may be referred to as a logic 0 or a logic low.
Posts
No comments:
Post a Comment