Hello,

Frst, I am new here and I am looking for help, I want to finish my first program. To finish i need following information:

1: I wan't to create an analog fault for my sensor. I use a 4-20 mAmpere Sensor for pressure, Range 0-10 BAR. If the Sensor is fault i get a text message on my LOGO!. The problem is i don't know the fault value which i have to set... Can I introduce in Logo soft a value of 3 mAmpere to get the FAULT value?

2: I have a hour counter which is countering my operation Time of the pump, I want to reset "operating time" via buttons from LOGO DISPLAY. Any idea how I can do this? 

many thanks in advance, that will help me a lot!

Hello, 

thanks for the reply!!

If you see any problems in the program please tell me.

Really a lot of thanks!!

Helo Ixo65,

thank you for your support!

1: In simulation  i can't introduce the value of minus it's that normal?

2: with the INPUT C1 I can now reset the operation time on the display? 

To understand, I want to reset the OT because if i change the pump ( because of any fault, defect ect.) I would change the OT to zero but the total time should remain on the LOGO screen.

3: I see you put a M31 for RED DISPLAY  but I don't have an external screen for this aplication.

If you put a M31 block I also see it on the normal LOGO screen?

I undersand pount 1 and 2,

but 3: 

so if i want to have a red screen for 2 faults of my aplication it is possibl or not? 

I3 is a protetion for my pump, to dont work without water, if I3 is not 1 there is a fault with a red screen.

if pressure sensor is faulty also a red screen with another fault subscribe appear. 

Can I do this with the LOGO?