Mitsubishi Electric MELSEC-Q QnPHCPU Programming Manual page 54

8 I/O CONTROL INSTRUCTIONS
(3) Engineering value reverse conversion
The result (T1) of the input limiter is converted reversely from the engineering value according
to the following expression.
T2 (EMAX EMIN)
(4) Digital filter
The input value (E1) is digitally filtered according to the following expression.
The digital filter is used to reduce noise.
BW
(5) Loop stop processing
(a) Setting 1 in SPA of the alarm detection (ALM) selects a loop stop.
A loop stop performs the following processing and terminates the S.IN instruction.
(b) Setting 0 in SPA of the alarm detection (ALM) selects a loop run.
A loop run performs "(1) Range check".
ERROR
• When an operation error occurs
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T1 NMIN
NMAX NMIN
T2 (Previous BW value
1) BW retains the last value.
2) SEA of the alarm detection (ALM) are turned to 0.
3) The operation mode (MODE) is changed to MAN.
4) BB1 to BB3 of BB are turned to 0.
T2
EMAX
EMIN
EMIN
NMIN
T2)
MELSEC-Q
NMAX T1
Error code: 4100
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