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6 PID CONTROL INSTRUCTION
6.2 PID Control Instruction (Exact Differential)
PIDSTOP instruction and PIDRUN instruction
PIDSTOP, PIDRUN
The following instruction can go in the dotted squares.
PIDSTOP, PIDSTOPP, PIDRUN, PIDRUNP
■
Executing condition
■
Argument
Processing details
• PIDSTOP(P)
This instruction stops the PID operation for the loop number specified by 'n'.
• PIDRUN(P)
This instruction starts the PID operation for the loop number specified by 'n'.
Precautions
The following table shows the CPU modules applicable to the PID control instructions (inexact differential) and the PID control
instructions (exact differential).
: Applicable,
: Not applicable
Instruction
Executing condition
PIDSTOP, PIDRUN
PIDSTOPP, PIDRUNP
Input/output
argument
Name
Description
Data type
Input argument
EN
Executing condition
Bit
n
Loop number for stop/start
ANY16
Output argument
ENO
Execution result
Bit
Setting
data
Internal device
R, ZR
J
\
U
\G
Zn
Constant
K, H
Others
Bit
Word
Bit
Word
(n)
CPU module model
Inexact differential
Exact differential
Basic model QCPU
The first five digits of the serial number are '04121' or lower.
The first five digits of the serial number are '04122' or higher
High Performance model
QCPU
The first five digits of the serial number are '05031' or lower.
The first five digits of the serial number are '05032' or higher.
Redundant CPU
Universal model QCPU
LCPU
Structured ladder/FBD
ST
EN
ENO
n
PIDSTOP
PIDSTOP
(EN, n);
ENO:=
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