problem with Positive edge

[Elaheh 0]

hello everyone I wrote a program that by positive edge of two inputs as Starts button the motor sets and by positive of stop buton rests it , but it doesn´t work . please help me and say why this problem .thanks OB1.pdf

[panic mode 246]

just remove pulse (edge) instructions. what is the chance that you will get two start buttons pressed at the exact same time?

[Elaheh 0]

thanks alot

[Groo 7]

Should be 'OR' not 'AND'. No need for one shot edge if its a normal start/stop. If your looking for a safety style start, two buttons together, then you would need bigger changes

[panic mode 246]

if it was OR, single button could be used as start. I don't think that is what he is after

[Groo 7]

The question was not clear on that but I did cover the two buttons together at the end of my reply by stating that if that is what he is after, which normally a safety application, he would need more than what he has done. He would need to ensure that the buttons are pressed within a short time of each other. Also if it is a safety application he shouldn't be doing it in the PLC, unless it is a safety PLC, there are hard wired two button press safety relays