Mitsubishi MELSEC-Q series Programming Manual page 13

(3) Free combination of process control instructions for application to a wide range of control
As an option, a process control instruction can be inserted in a loop that links process control instructions.
Add the square root operation instruction (S.SQR) to perform the square root operation of an input signal to provide an
output signal as shown below.
[Example of adding square root operation instruction (S.SQR) to process control instructions]
Process control instruction
(2-degree-of-freedom PID
control instruction)
(4) Automatic detection of various alarms
A system can be configured safely since various alarms are detected automatically in the system.
FE flow meter
Added as
option
Process control instruction
(Square root operation
S.SQR
instruction)
instruction
S.2PID instruction
Regulator
FIC
Liquid
Diaphragm valve
Loop tag memory setting
Operation constant setting
Normal ON
S.SQR R0
EM0V R100
Normal ON
S.2PID R40 R140
R100 R200 SD1506
R40
R240 R1000 R300
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3
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