[?]: What information can I receive from PLC?

[haytero]

Hi,

I was made to understand automation process not so long ago, and now have nube question.
What information can I receive from PLC?
Is it possible to understand, with which SCADA this PLC is working and, for example, dynamically change PLC behaviour?

[Umencho]

In order to receive answer in details give the same. What type PLC do you have, type of SCADA and communication type? Basically you can receive any info from PLC in order to show it in SCADA.

[haytero]

Data flow is following: I connect from remote HMI to PLC and want to check, if any other remote HMI devices work with this PLC, and then, depending on which device is it (Simatic HMI or CitectSCADA HMI, for example), do different actions. Is such data flow possible in general or PLC can act only as server - device, that give information, but doesn't take?