Seek guidance on PKS configuration
Thread Content
Starting from the pulse generation, how should the feedback signal be interpreted? I seek guidance – what are the advantages of this approach? On which pin should points be taken for the initial image, from the start signal or from the pulse output?
Well, could you be more specific? How was it done?
Let me explain to you: in PKs, when you press the start button, it turns green; you need to press it again for it to turn red. Adding a pulse means that when you press it and it turns green, it will send a pulse to the one following it; then that subsequent pulse will in turn send a green signal back to this start button.
It means that after I click it, I won’t be able to click it again; it needs to be reset, right? ? Guru
A self-resetting button is one that, when pressed once, immediately returns to its original state.
Hey, do you even need to ask about a pulse signal?
May I ask, are there any requirements regarding the execution order of these two modules?
This post was last edited by hfrs on 2018-12-11 09:26. I don’t understand PKS. My understanding is: one is a Boolean variable block and the other is a pulse block; only the variable block can be assigned values, so why are there two blocks? When the value assigned to the variable block is 1, the pulse block emits a pulse, which is then assigned to the variable block; once the pulse ends, the value of the variable block becomes 0 – that’s the logic! Doing this involves issues related to electrical safe startup, but the reason for doing so depends on the process requirements and electrical specifications, as the PKS itself has a DEVCTL block that can be used to control motors and similar devices.
This post was last edited by Yann on 2018-12-11 at 15:10. The execution order must be such that Start is later (greater than) Pulse in order for this to work. This Start+Pulse can be understood as a self-resetting button, somewhat similar to the start button you see on electrical control panels. The Start.pvfl should be connected to the human-machine interface for control.
The human-machine interface connection is achieved through START.PV.