Timer question

[7ishnz]

I would like to use a timer to control a turbo  oil scavenge pump through a relay on Aux 3. It needs to switch on after engine start, and the cycle 30sec on, 30sc off till the engine is stopped.

How can this be done? 

Thanks.

[Adamw]

something like this will do it:

[7ishnz]

Thank you.

My software doesn't have a "reset on On/Off edge" choice .... I only have reset on  or reset off.   Which should I use?