762
11 PID CONTROL INSTRUCTION
11.1 PID Control Loop
11
PID CONTROL INSTRUCTION
11.1
PID Control Loop
PID
This instruction executes PID control which changes the output value according to the input variation.
Setting data
■
Descriptions, ranges, and data types
*1 When setting using a label, use the global label assigned to the device.
■
Applicable devices
*1 Only D, SD, R can be used.
Processing details
When the target value (s1), measured value (s2), and parameters (s3) to (s3)+6 are set and a program is executed, the
operation result (MV) is stored to the output value (d) at every sampling time (s3). For details, refer to the
MELSEC iQ-F
FX5 User's Manual (Application).
Ladder diagram
Structured text
ENO:=PID(EN,s1,s2,s3,d);
FBD/LD
Operand
Description
Range
Data type
Data type (label)
(s1)
Device number storing the target value (SV)
-32768 to +32767
16-bit signed binary
ANY16
(s2)
Device number storing the measured value (PV)
-32768 to +32767
16-bit signed binary
ANY16
(s3)
Device number storing a parameter
1 to 32767
16-bit signed binary
ANY16
(d)
Device number storing the output value (MV)
-32768 to +32767
16-bit signed binary
ANY16
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s1)
(s2)
(s3)
(d)
(s1)
(s2)
(s3)
(d)
EN
ENO
d
s1
s2
s3
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
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