10.3
Velocity Type PID Control (Enable Tracking for
primary loop) (M+P_PID_T)
M+P_PID_T
This FB performs PID operations using process variable differential, inexact differential, and velocity type, and outputs the
result (MV). The primary loop can be tracked.
FBD/LD
M+P_PID_T
PVP
MVD
CASIN_T
Applicable tag type
PID
Control mode
MAN
■Block diagram
(%)
PVP
NOR,
SIM,
OVR
CASIN_T
(%)
(Tracking)
*
Indicates bits item.
Setting data
■Input/output variable
Variable
Description
name
PVP
PV input (unit: %)
CASIN_T
Cascade SV input (unit: %) (With tracking) (Indirect address)
MV output (unit: %)
MVD
10 LOOP CONTROL OPERATION
190
10.3 Velocity Type PID Control (Enable Tracking for primary loop) (M+P_PID_T)
AUT
NOR,
SIM,
OVR
AT
MAN
Auto tuning
(AT1)
Engineering
value
conversion
CAS
AT
Tag data
CAS
M+P_PID_T
Deviation
-
check
Tracking enabled
(Operation constant
TRK=1)
Inverse
engineering
Inhibiting alarm
value conversion
detection
DVLA(*)
SV
ALM
Recommended
range
0 to 100[%]
0 to 100[%]
-999999 to 999999[%]
CMV
CSV
PID
operation
Tracking
(primary loop)
MAN,
AUT,
AT
CMV
MAN
MV
Type
Input variable
Input variable
Output variable
MVD
(%)
(ΔMV)
Data type
REAL
DWORD
REAL