Hello
I'm creating a project using the s7-1200 and a KTP600 HMI interface.
The problem is that i don't know how i can write any number (in this case a number from 1 to 4) using the HMI interface to the PLC.
If i use a I/O field on the HMI and configure it to be an input, i can change it on the HMI console but the value won't be changed on the PLC (the HMI won't send the value to the PLC - i guess that's the problem).
How can i achieve this?
I hope i made myself clear.
Thanks in advance
I'm creating a project using the s7-1200 and a KTP600 HMI interface.
The problem is that i don't know how i can write any number (in this case a number from 1 to 4) using the HMI interface to the PLC.
If i use a I/O field on the HMI and configure it to be an input, i can change it on the HMI console but the value won't be changed on the PLC (the HMI won't send the value to the PLC - i guess that's the problem).
How can i achieve this?
I hope i made myself clear.
Thanks in advance