User`s manual

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MELSEC-Q
2 STRUCTURE AND COMBINATIONS OF PROCESS CONTROL
INSTRUCTIONS
Loop type Structure Application
Batch counter
(SBC)
S.PSUM
INPUT OUTPUT
S.BC
A valve or like is controlled ON/OFF in a
process of batch preparation for a tank or
like.
Program setting device
(SPGS)
S.PGS OUTPUT
MV
This is output in accordance with the
previously set value time change.
Manual output
(SMOUT)
S.MOUT
MV
OUTPUT
This manually operates the operation
terminal end.
Monitor
(SMON)
PV
S.IN
INPUT
S.PHPL
OUTPUT
This inputs the process value and detects
process errors such as upper/lower limit
alarms.
Manual output with monitor
(SMWM)
S.IN
INPUT OUTPUT
S.PHPL S.MOUT
MVPV
This inputs the process value and
conducts manual operation while checking
that no errors occur.
Selector
(SSEL)
S.SEL
INPUT2
OUTPUT
INPUT1
This is used to select signals.