Pid Operation Instruction - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

9.2

PID Operation Instruction

PID
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
• The RnCPU and RnENCPU with firmware version "17" or later support this instruction. (Use an engineering tool with version "1.020W" or later.)
This instruction performs PID operation using the values set in (s1) to (s3), and stores the operation result in (d) at each cycle
of sampling time.
Ladder
(s1) (s2) (s3)
FBD/LD
EN ENO
s1 d
s2
s3
■Execution condition
Instruction
PID
Setting data
■Description, range, data type
Operand Description
(s1) Device where the set value (SV) is stored
(s2) Device where the process value (PV) is stored
(s3) Start device where the control data are stored
(d) Device for storing the manipulated value (MV)
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, J\
SM, F, B,
SB, FX, FY
 
(s1)
(s2)  
 
(s3)
 
(d)
Processing details
When the set value (s1), process value (s2), and control data (s3) to (s3)+6 are set and a program is executed, the operation
result, manipulated value (MV), is stored to (d) at every cycle of sampling time. For details, refer to the following.
Page 1134 Overview
RnSFCPU RnSFCPU
(Standard) (Safety)
(d)
Execution condition
Word
T, ST, C, D, W, U\G, J\,
SD, SW, FD, R, U3E\(H)G
ZR, RD
 
 
 
 
ST
ENO:=PID(EN,s1,s2,s3,d);
Range Data type
-32768 to 32767 16-bit signed binary
-32768 to 32767 16-bit signed binary
 16-bit signed binary
-32768 to 32767 16-bit signed binary
 Bit

Bit
Double word Indirect
specification
Z LT, LST, LZ
LC
   
   
   
   
9 PID OPERATION INSTRUCTION
Data type (label)
ANY16
ANY16
ANY16
ANY16
BOOL
BOOL
Constant Others
K, H E $
   
   
   
   
9.2 PID Operation Instruction
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