Sample Pi Control (Enable Tracking For Primary Loop) (M+P_Spi_T) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

10.13
Sample PI Control (Enable Tracking for primary
loop) (M+P_SPI_T)
M+P_SPI_T
This FB performs PI control during operating time (ST_) and outputs the result (MV). It holds the output (MV = 0) during
hold time (HT). The primary loop can be tracked.
FBD/LD
M+P_SPI_T
PVP MVD
CASIN_T
Applicable tag type
SPI
Control mode
MAN AUT
 
■Block diagram
PVP (%)
Engineering
CASIN_T (%)
value
(Tracking)
conversion
* 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
CAS

M+P_SPI_T
-
Tracking valid
(operation constant
TRK=1)
Inverse
engineering
value conversion
CAS
Tag data
SV

10.13 Sample PI Control (Enable Tracking for primary loop) (M+P_SPI_T)

CMV

Deviation SPI
check operation
Tracking
(primary loop)
MAN,
AUT,
CMV
Disable alarm
detection
DVLA (*)
ALM
Recommended Type
range
0 to 100[%] Input variable
0 to 100[%] Input variable
-999999 to 999999[%] Output variable
10 LOOP CONTROL OPERATION
CSV

(%) MVD
(ΔMV)
Data type
REAL
DWORD
REAL
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