(M+M_2Pid_Duty) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

12.8
2-degree-of-freedom PID Control and DUTY O/P
(Disable Tracking for primary loop)

(M+M_2PID_DUTY)

M+M_2PID_DUTY
This FB performs two-degree-of-freedom PID control and duty output combining the functions of M+P_IN, M+P_PHPL,
M+P_2PID, and M+P_DUTY into a single FB.
FBD/LD
M+M_2PID_DUTY
PVN MVB
CASIN CASOUT
CASOUT_T
Applicable tag type
2PID
Control mode
MAN

■Block diagram
MCHG function
(M+P_MCHG)*
PVN
IN function
(M+P_IN)*
CASIN
* (M+P_ ) indicates the main structure member tag access FB which is the main component of each function.
Setting data
■Input/output variable
Variable name Description
PVN Input from a module
CASIN Primary loop SV input (Unit: %)
MVB Bit output to a module
CASOUT Cascade MV output (Unit: %)
CASOUT_T Cascade MV output (Unit: %) (With tracking) (Indirect
address)
12 LOOP TAG
358
12.8 2-degree-of-freedom PID Control and DUTY O/P (Disable Tracking for primary loop) (M+M_2PID_DUTY)
AUT CAS
 
M+M_2PID_DUTY
PHPL function
(M+P_PHPL)*
(With auto tuning function)
CMV

2PID function
DUTY function
(M+P_2PID)*
(M+P_DUTY)*
Recommended
range
-999999 to 999999
0 to 100[%]
TRUE, FALSE
0 to 100[%]
0 to 100[%]
CSV

MVB
CASOUT
MV(%)
MV(%) CASOUT_T
(Tracking)
Type Data type
Input variable REAL
Input variable REAL
Output variable BOOL
Output variable REAL
Output variable DWORD