It is I/O processing in DCS, all the analog input and output.
I guess there is a standard on the scanning rate of the I/O.
I do hope some can help if there is standard or not.
dear all
is there any standard regarding I/O scanning rate for Distributed control system (DCS)
I am trying to look for is there any written standard such ISA,IEC or others
Here my problem,
there is scanning option for all the I/O analog and digital.
there is 250 ms 500ms and 1 sec.
the...