How does a button in the PLC control the elevating platform
To be safe, at least two buttons.I hope my answer will help you.
Click on the rise to the top, and then the bottom? This can be used to refer to a button that controls an electric motor The elevating platform must have the upper and lower limit, and can not stop in the middle. Not safe.
The recommended answer is wrong, and the platform should stop at any location. You can either push the button or click the number of times to tell whether it's up or down. For example, press the ascent in one second, press two, and press the button to stop. Instructions will use timers, counters, and pulse detection. You get the idea.
