Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1202

Processing details
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.)
E1
RUN (SPA=0)
(5)
Loop stop
determination
SPA
SEA
ERRI¸SEI
MODE
11 PROCESS CONTROL INSTRUCTIONS
1200
11.2 I/O Control Instructions
HH, H, L, LL
(1) (2)
Range check
STOP (SPA=1)
Lower limit
alarm
NMAX, NMIN EMAX, EMIN
(3)
Engineering
Input limiter value reverse
conversion
Upper limit alarm
AND
AND
(5)
Loop stop
MAN
processing
α
(4)
Digital filter
OR
BW=Last value
OFF (all bits)
BW
BB2
BB3
BB1