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October 15th, 2002, 12:37 PM
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Member
 
Join Date: Oct 2002
Posts: 2
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plc ladder logic
hello, i'am trying to write logic where by 2 dock doors are used, if a first dock door is open, the second cant open, till the first is closed, so that both cant be open together, but can be closed together. i was wondering how i go about writing the ladder logic for this situation, and what i need to do to make this occur? your help is grealty appreciated,
thank you, mike. |
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