1200
11 PROCESS CONTROL INSTRUCTIONS
11.2 I/O Control Instructions
This instruction performs engineering value transformation of the input value (E1) in the device specified by (s1), and stores
the result in the device specified by (d1). The instruction also performs input value (E1) range check, input limiter, and digital
filter processing.
The following is the processing block diagram of the S.IN instruction. (The numbers (1) to (5) in the diagram indicate the order
of the processing.)
AND
AND
MAN
OR
SPA
SEA
ERRI¸SEI
MODE
E1
BW
BB2
BB3
BB1
HH, H, L, LL NMAX, NMIN EMAX, EMIN
α
(1) (3)(2) (4)
(5)
(5)
RUN (SPA=0)
STOP (SPA=1)
Range check
Loop stop
determination
Digital filter
Engineering
value reverse
conversion
Input limiter
Loop stop
processing
BW=Last value
OFF (all bits)
Upper limit alarm
Lower limit
alarm
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