Greetings from all the way down here in New Zealand.

Could I please have some assistance with a Latching Relay issue. I have attached a zip file.

Scenario:

I1 (& I2, I3, I4, I5 once I know how to fix my problem below) each different switch selects a different preset time that pump is on for eg. 5,10,15 sec etc.

I6 for Pump Start

I7 for Pump Stop

I8 for Tank Level Low

I1 needs to be pressed & held for 2 seconds to Arm it. It can be released at any time to disarm it

Once I1 is Armed, then Pump Start I6 also needs to be pressed & held down for 2 seconds to start the pump. Then both buttons can be released once pump is running. The pump will run for the allocated time (B006) and will then stop automatically and reset B006.

I7 & I8 will both stop the pumping process immediately and also stop the remaining countdown timer B006

This all works OK.

However, the problem I have is if I1 and I6 are both held down for 2 seconds, and the pump starts, and if I1 & I6 continue to be held down until after the pump runs and the timer B006 finishes, then the pump stays on even when I1 & I6 are eventually released!?

I know the answer is simply not to continue to hold I1 & I6 down after the pump has started!

Because the pump time is only on for a few seconds, I have to presume that someone will accidentally or intentionally hold the I1 & I6 buttons down so I need to find a solution please.

Any help would be most appreciated thanks

Brilliant thank you! I hadnt understood how to use 'And Edge' Block.

It works correctly now. Thanks again:-)