Set network input state via network output

Hi,

I have to make a simple program with 2 network inputs. The goal is, that the 2 network inputs cannot be ON at the same time.

The expected behavior should be: if I set the "GO DOWN" bit AND the "GO UP" bit is ON, the the "GO UP" bit must be cleared and vice versa.

If both bits are OFF, and I set the "GO DOWN" bit to ON, the belonging outpus must follow the input state. (If I clear the bit, the output should go off).

I've attached a sample program whitch can do this via setting the network outputs.

My problem is, that this solution works perfectly in the simulator, but it does not work in the real LOGO.

In the real LOGO, if I set the "GO DOWN" or "GO UP" bit to ON, the bit state begins to change 0-1-0-1-0-1 (like prelling).

My question is: why is it working in the simulator, and why is failing in the real LOGO? Is it a simulator bug?

How can I solve this problem?

Thank you in advance!

Hello,

I make my roller shutter automation. I would like to control my rollos via OpenHAB. OpenHAB sends commands to LOGO via network inputs (pull up roller shutter 2).

I would like to make a logic, that if "pull up" command is active, and rollo is moving up, and I send a "pull down" command to it, the "pull up" command must automatically cleared and the new command activated (and on the touch screen the button states should be changed accordingly). Or, when the rollo reaches e.g. the upper end position (see below, I built in a position sensor), the command should be cleared automatically (the network input should be off). 

The second purpose, that I would like to avoid the situation, that both buttons are in pushed state. I know, that I can make some protection at the outputs with interlocking, but on the control surface is not elegant if both buttons are pushed and the rollo does not move...

The third purpose is: I built into my rollo an upper position sensor, and a rotation sensor. With these two sensors I can teach my rollo automatically, where the upper and lower positions are (I will be important later, when I send a command e.g. move to the half postion). For this function, I built in a function to LOGO: teaching mode. When I set this network input, the rollo moves up, finds the end position, and in the next step it moves down, and counts the impulses of the rotation sensor. When the rollo reaches the down end position (I get no impulse from the rotation sensor for 5 seconds), the teaching mode must switch itself off automatically (the network input flag must be cleared by the logic).

Can I upload the whole control progam? Can it be interesting?

Ok, I understand. I thought, that I can read a memory address with network input, and I can write a memory address with network output. I understand it too, that is the input and output has the same address, that the output "overwrites" the input state.

So I use the network output to set the specific memory address (where the network input is located) to 1 or 0.

My question is: if I cannot change the network input state this way, how can I do it?

It is essential for me to control it inside the LOGO program.

Do you mean, that I should "break" the static input-output connection?

Should I make a network input momentary pushbutton, and give a "function active" feedback in another network output memory location?

Super, this solution is perfect for me.

Thank you so much for your help!