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Thread: need help, writing a program for "anti-tie down" schematic

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    Default need help, writing a program for "anti-tie down" schematic

    in ladder logic, need a program for an "anti=tie down circuit" that will disallow a punch press solenoid from operating unless both hands are on tne two plam start buttons.. Both buttons must be pressed at the same time within 0.5s Than circuit also will not allow the operator to tie down one of the buttons and operate the press with just one button. (Hint: Once either of the buttons is pressed, begin timing 0.5s. Than, if both buttons are not pressed,prevent pree solenoid from operating.)

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    Default Re: need help, writing a program for "anti-tie down" schematic

    Thanks for the help.
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