KCRP

FX3U Series

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Hai, I am doing program for Mitsubishi FX3U Series PLC i don't know some options in that can any one help me to sort out this.

1) I assigned the Address Y040 for one output, suppose during the machine running this output is in ON condition, if the plc power went Off and On again, the output should be in the same previous state. can we do this? How? 

2) If i switch OFF the PLC power and Switch ON again i want to switch ON one Input Contact, only for the first time. What is that one scan ON input Address?

Please reply fast if you know..

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The manual lists the built in addresses, including the first scan flag.  And no, outputs do not hold their value when the power goes off.  You would have to control that output from some battery backed address in memory.  Those are also listed in the manual.

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Thank you..so much for your reply. This website is very useful. i like it. i am just a beginner for this PLC field please help me if i ask some questions.Thanks.

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