Does Modicon M340 have a Retentive Timer Block?

[tmeyer 0]

I am new to the Unity Pro software/Modicon M340 processor (previous experience with AB). Does this processor have an instruction for a retentive timer? All I can find is a TON instruction, which resets when the input is removed. I would like a timer that holds its time unless specifically reset (an RTO timer in the AB world). Any help would be greatly appreciated. Tony

[aggattapauer 2]

No, you have to create by yourself.

[rajsiyer 7]

Yes something like this.. Take care to erase the elapsed times to zero. when reinitialised. the Mirror_S6 bit is a copy of %S6 at the very end of the program to create a rising edge on %S6 which is the system bit for 1 sec. Raj s. Iyer retentive.bmp

[Automaton 0]

Hi Tony Have a look at the PL7_3_TIMER in the obsulete function blocks library This has an enable and a control input, while the control input is on the timer functions, turning off the control input pauses the system retaining the time passed Hope this helps