PC based Control .vs. PLC

Hi Don...Well d guys have already given brilliant replies to ur query...
it ws indeed a vry good nd logical qustn...
I would like to add one more point.
Normally, in any industrial procs, there r many inputs which need to b simultaneously appld to d controller.
Now, a PLC can have dozens f inpts and outpts whr z a PC allows only a limitd nmbr f inpt nd outpt points.
 
hello

----- snip ----
> I would like to add one more point.
> Normally, in any industrial procs, there r many inputs which need to b simultaneously appld to d controller.
> Now, a PLC can have dozens f inpts and outpts whr z a PC allows only a limitd nmbr f inpt nd outpt points. <

Today that's not the case. There are DIN rail PCs ( e.g. the Wago I/O PC) which are extendible with a lot of DIN rail I/O modules.

PC controllers have also access to the fieldbus technology ... most fieldbusses are supporting 32 - 256 remote I/O modules.

Best Regards

Armin Steinhoff
http://www.steinhoff-automation.com
 
J

Jawahar Bhattacharya

I agree fully with Mr. Herman De Schepper and wish to add that implementation of redundancies in PC based control system are next to impossible.
 
C
Now that's just silly, your email probably crossed 10 redundant system getting here.
And the hardware is the easy part.

Regards
cww
 
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