2-Degree-Of-Freedom Advanced Pid Control (Enable Tracking For Primary Loop) (M+M_2Pidh_T_) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

12.9
2-degree-of-freedom Advanced PID Control
(Enable Tracking for primary loop)
(M+M_2PIDH_T_)
M+M_2PIDH_T_
This FB performs two-degree-of-freedom PID control combining the functions of M+P_IN, M+P_PHPL, M+P_2PIDH_T_, and
M+P_OUT3_ into a single FB with PV/MV correction. The primary loop can be tracked.
FBD/LD
M+M_2PIDH_T_
PVN
CASIN_T
PV_CMPIN
PVD_CMPIN
MVD_CMPIN MVD_CMPOUT
MVD_GAININ
MV_CMPIN
MV_TRKIN
Applicable tag type
2PIDH
Control mode
MAN

*1 Transition to CASDR is possible.
■Block diagram
PVN
(PV input)
PVCMP_EN
(PV compensation
PV_CMPIN
execution condition)
(PV compensation value)
PVDCMP_EN
(ΔPV gain compensation
PVD_CMPIN
execution condition)
(ΔPV compensation value)
CASIN
(Primary loop SV input)
MVDCMP_EN
(ΔMV compensation
MVD_CMPIN
execution condition)
(ΔMV compensation value)
MVDGAINCMP_EN
(ΔMV gaincorrection
MVD_GAININ
execution condition)
(ΔMV correction gain value)
MV_CMPIN
(MV compensation input)
MV_TRKIN
(MVt racking input)
*(M+P_ ) indicates the main structure member tag access FB which is the main component of each function.
12 LOOP TAG
360

12.9 2-degree-of-freedom Advanced PID Control (Enable Tracking for primary loop) (M+M_2PIDH_T_)

MVN
CASOUT
CASOUT_T
PV_CMPOUT
MV_CMPOUT
AUT

MCHG
function
(M+P_MCHG)*
Temperature/
Analog Square root
Pressure
input extraction
correction
(M+P_SQR)*
(M+P_IN)*
(M+P_TPC)*
High/low limit High/low limit
2-degree-of-freedom
Control alarm check Advanced PID control
(M+P_2PIDH_)*
(LIMIT) (M+P_PHPL)*
*1
CAS

M+M_2PIDH_T_
Engineering
Broken line Lead-lag
value
compensation
approximation
conversion
(M+P_FG)* (M+P_LLAG)*
(M+P_ENG)*
ΔMV compensation
+,
Replace-
ment
CMV CSV
 
Inverse
PV
ΔPV
engineering
value
compen-
compen-
conversion
sation
sation
(M+P_IENG)*
ΔMV gain correction
Output
processing-3
with mode
switching
×
(M+P_OUT3_)*
PV_CMPOUT
(Output for PV
compensation)
MVD_CMPOUT
(Output for ΔMV
compensation)
MV_CMPOUT
(Output for MV
compensation)
MVN
(Output to module)
CASOUT
(Cascade MV output
without tracking)
CASOUT_T
(Cascade MV output
with tracking)