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6.2 PID Control Instruction (Exact Differential)
6.2.2 PIDCONT instruction
PIDCONT
m=(n-1) 18+10
n: number of loops
Device Data name Description
Setting range
Setting
side
Processing when the
setting data are outside
the setting range
With PID
limits
Without PID
limits
I/O data area for No. 2 loop (device: +28 to +45)
+28
Set value SV
The same as I/O data area for No. 1 loop
+29
Process
value
PV
+30
Automatic
manipulated
value
MV
+31
Process
value after
filtering
PVf
+32
Manual
manipulated
value
MV
MAN
+33
Manual/
automatic
selection
MAN/
AUTO
+34
Alarm
ALARM
+35
PID control work area
(reserved by the system)
–––
to
+45
I/O data area for No. n loop
+(m+0)
Set value SV
The same as I/O data area for No. 1 loop
+(m+1)
Process
value
PV
+(m+2)
Automatic
manipulated
value
MV
+(m+3)
Process
value after
filtering
PVf
+(m+4)
Manual
manipulated
value
MV
MAN
+(m+5)
Manual/
automatic
selection
MAN/
AUTO
+(m+6)
Alarm
ALARM
+(m+7)
PID control work area
(reserved by the system)
–––
to
+(m+17)
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s