Hi,

I'm trying to build a temp control setup by using Logo and external relays that are PULSE based.

PULSE: IMPULSE relay on

PULSE: IMPULSE relay off

I get a 0-10 V signal in, that is converted to a temperature value ( 0- 32 degrees) . What I want to obtain is that once temp goes above 25: it send a pulse out to the relay ( that connects a 2500 watt heater ) ; once the temp goes below 24.8, it sends a pulse to the relay ( that then disconnects the 2500 watt heater).

I'm looking for the logic to send out a pulse based on the temperature instead of keeping it on or off . 

Thanks already for helping me

Oops, you are correct, it's the other way.

24.8 ON, 25 OFF