help with S7-300 and timers

Hey i must have a blackout, i cant find out how to solve this one out please help!!

when m0.0=1
A0.0=1 in 1sec
and then A0.0=0 in 1sec
and after that A0.0=1 until i have m0.0=0

i had asolution in my head but lost it now...

you mean you want the output to toggle on/off every second whilst M0.0 is on.

Don't use timers, use the clock memory byte. Set up a byte as clock memeory in the CPU properties in hardware config. Then use the 2 second cycle bit (1 sec on/1 sec off)

Thanks for the answer, i cant use the clockbyte becuese we need to change the time for T1 and T2.
And it should only open once, i did it this way.

Should be an picture there, trying one more time
did a PDF instead how i didit

thanks

I want to make sure I understand your sequence:

 

Time=0            M0.0=1

Time=1            A0.0=1

Time=2            A0.0=0 

Time=3            A0.0=1

Time=??           M0.0=1 AND A0.0=0

 

Is this correct?

Keith

Keith, did u look at the PDF file?
it´s a griper that need to grip 2 times before lift up the stick in to a machine

1. m0.0=1 sets A0.0=1 and T1 (750ms) (On-Delay Timer)
2. T1 stop A0.0=0 and sets T2 (750ms) (On-Delay Timer)
3. T2 reset T1 and sets A0.0
and after that A0.0=1 until M0.0=0 (machine stops)

M0.0=0 the reset T2

hard to explain take a look at the PDF, hope some one understand my bad english =)

try this...