Chapter 12 Loop Tag; Velocity Type Pid Control (Enable Tracking For Primary Loop) (M+M_Pid_T) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

12
LOOP TAG
The following FBs perform loop control processing including ratio control, various PID controls, two-position (on/off) control,
three-position (on/off) control, program setter, and loop selector.
12.1
Velocity Type PID Control (Enable Tracking for
primary loop) (M+M_PID_T)
M+M_PID_T
This FB performs velocity type PID control combining the functions of M+P_IN, M+P_PHPL, M+P_PID_T, and M+P_OUT1
into a single FB. The primary loop can be tracked.
FBD/LD
M+M_PID_T
PVN MVN
CASIN_T CASOUT
CASOUT_T
Applicable tag type
PID
Control mode
MAN

■Block diagram
MCHG function
(M+P_MCHG)*
PVN
CASIN_T
(Tracking)
* (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_T Primary loop SV input (Unit: %) (With tracking)
(Indirect address)
MVN Output to a module
CASOUT Cascade MV output (Unit: %)
CASOUT_T Cascade MV output (Unit: %) (With tracking) (Indirect
address)
12 LOOP TAG
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12.1 Velocity Type PID Control (Enable Tracking for primary loop) (M+M_PID_T)

AUT

IN function PHPL function
(M+P_IN)* (M+P_PHPL)*
CAS CMV
 
M+M_PID_T
PID function
(M+P_PID_T)*
(With auto tuning function)
Recommended range
-999999 to 999999
0 to 100[%]
OUT1_NMIN to
OUT1_NMAX
0 to 100[%]
0 to 100[%]
CSV

OUT1 function
(M+P_OUT1)*
MV(%)
MV(%)
(Tracking)
Type
Input variable
Input variable
Output variable
Output variable
Output variable
MVN
CASOUT
CASOUT_T
Data type
REAL
DWORD
REAL
REAL
DWORD