In many factory environments, the need to vary the value in a single set-point exists. This need may be based on some internal programming or external action. Whatever the mechanism, in this lesson, we will start programming this function.
Our set-point change will be based on some internal timers but will be started with the press of a start button as an external action. We will discuss the I/O required to perform this task and lay down some code in our quest to accomplish this chore.
This code begins the process with the start button and the first variable set-point.
While there will be further lessons to complete the programming, let’s get started with the first portion.