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

Performing PID operation

PIDCONT(P)
RnPCPU
RnCPU RnENCPU
(Process)
• [RnPCPU (redundant)] If these instructions are used in a program executed in both systems, there are restrictions on their operation in the standby system
when the redundant system is in backup mode. ( MELSEC iQ-R CPU Module User's Manual (Application))
These instructions measure the sampling cycle and perform PID operation when the execution command turns on.
Ladder
(s)
FBD/LD
EN ENO
s
■Execution condition
Instruction
PIDCONT
PIDCONTP
Setting data
■Description, range, data type
Operand Description
(s) Start device assigned to the I/O data area
EN Execution condition
ENO Execution result
*1 When specifying setting data by using a label, define an array to secure enough operation area and specify an element of the array
label.
■Applicable devices
Operand Bit
X, Y, M, L,
SM, F, B,
SB, FX, FY
(s) 
10 PID CONTROL INSTRUCTIONS
1174
10.3 PID Control Instructions (Exact Differential)
RnPCPU RnSFCPU RnSFCPU
(Redundant) (Standard) (Safety)
Execution condition
Word
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
 
ST
ENO:=PIDCONT(EN,s);
ENO:=PIDCONTP(EN,s);
Range



Double word
U\G, J\, Z LT, LST,
U3E\(H)G LC
  
Data type Data type (label)
Word ANY16
Bit BOOL
Bit BOOL
Indirect Constant
specification
LZ K, H
  
*1
Others
E $
  