JZGKCHINAIndustrial Control Technology Sharing Platform
Industrial control professionals believe:
The source of all methods in industrial control
What is it?
It is a PLC
There are secrets to this PLC
Like the source of all methods in the universe, “Tathāgata”
—— Like a PLC
Is it programmable? Yes, it is indeed programmable. But is it really programmable? Yes, it is. Can it be programmed or not? Yes, it can.
Does it have logic? Yes, it does. But does it really have logic? Yes, it does. Is there logic or not? Yes, there is.
Can it control? Yes, it can. But can it really control? Yes, it can. Can it control or not? Yes, it can.
Look at the PLC, it is quite powerful.
Adding a “like” makes it even more powerful.
Is it an entity?
Is it not an entity?
Before it was created,
we could not assume whether it is a PLC.
An expert asked another expert
Is a PLC hardware or software?
Is it at the terminal layer, edge layer, or cloud layer?
If complex calculations are added, is it still a PLC?
Laozi once said
The way that can be told is not the eternal way; the name that can be named is not the eternal name.
What does it mean?
Actually, Laozi couldn’t say for sure.
Some things
are just not that easy to describe.
Wittgenstein summarized this situation
Anything that can be said can be said clearly, and anything that cannot be said should remain silent.
Therefore, the best answer to the above expert’s question
is to say nothing, pretending not to hear.
If the expert presses for an answer,
then inform them that these are all
“like a PLC”
Can hardware complete programming, logic, and control?
If yes, then it is like a PLC.
Can software complete programming, logic, and control?
If yes, then it is like a PLC.
……
Can it complete programming, logic, and control at the edge?
If yes, then it is like a PLC.
……
If complex calculations are added,
can it complete programming, logic, and control?
If yes, then it is like a PLC.
As long as it is programmable, has logic, and can control
it is a PLC.
Do not rigidly classify PLCs
into large, medium, and small types
and separate PLCs from IPCs
or separate HMIs from PLCs and PCs.
Beckhoff X20CP0484 and X20CP0410 deployed on PC, integrating the computing power of the PC, and extending tasks to:
Complex algorithm design
Such as multi-zone temperature control and pressure holding closed-loop algorithms for injection molding machines and extrusion
Motion control
Time-critical axis control tasks
Complex network data processing
Different protocol parsing and processing tasks, thus supporting various fieldbus mixed use
Including integrated products with Web Server and FTP Server, it is also a PLC.
PLC is no longer the PLC of the past.
We say they are all like PLCs.
Is it a PLC?
Yes, it is.
Yes, it is.
Yes, it is.
Moreover,
within the world of automation,
there is also the so-called PAC/PCC/PC debate,
as well as edge controllers, next-generation PLCs,
and various other terms.
These are all disputes over names, not over substance.
A PLC is an execution mechanism for embedded tasks, its core lies in the task carrier, and whether this task runs on hardware PLCs, PCs, or in the cloud is not that important. As a control center, the core value of a PLC lies in the application software, and the algorithms, software modules, methods, and systems accumulated over decades in the automation industry in vertical fields are the key.
The integration of mechanics and control, the integration of processes and control, communication and control, sensing and control, merging across multiple boundaries gives controllers unlimited expansion capabilities. This capability is the key to the development of PLCs.
Everything can be “like”
Everything can be “like”
Everything can be “like”