Starting The Operation Of Specified Loop Number - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Starting the operation of specified loop number

PIDRUN(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 start the PID operation of the specified loop number.
Ladder
(s)
FBD/LD
EN ENO
s
■Execution condition
Instruction
PIDRUN
PIDRUNP
Setting data
■Description, range, data type
Operand Description
(s) Loop number to be stopped
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L,
SM, F, B,
SB, FX, FY

(s)
Processing details
• These instructions start the PID operation of the loop number in the device specified by (s). These instructions are used to
re-execute the PID operation of the loop number that has been stopped by the PIDSTOP(P) instruction.
• The PIDRUN(P) instruction, if executed for a loop number already in progress of PID operation, performs no processing.
Operation error
Error code Description
(SD0)
3405H Out-of-range data is set in the device specified by (s).
• The specified loop number does not exist.
• The specified value is other than 1 to 32.
3422H The PIDINIT(P) and PIDCONT(P) instructions are not executed before the PIDRUN(P) instruction.
10 PID CONTROL INSTRUCTIONS
1178
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:=PIDRUN(EN,s);
ENO:=PIDRUNP(EN,s);
Range
1 to 32


Double word
U\G, J\, Z LT, LST,
U3E\(H)G LC
  
Data type Data type (label)
16-bit unsigned binary ANY16
Bit BOOL
Bit BOOL
Indirect Constant
specification
LZ K, H
  
Others
E $
  