Omron CJ - PROGRAMMING MANUAL 12-2009 - Data Control Instructions

129
Data Control Instructions
Section 3-16
3-16 Data Control Instructions
Instruction
Mnemonic
Code
Symbol/Operand Function Location
Execution condition
PID CONTROL
PID
190
Output
Required
PID CONTROL
WITH AUTOTUN-
ING
PIDAT
191
(CS1-H, CJ1-H,
or CJ1M only)
Executes PID control according to the specified parameters. The PID
constants can be auto-tuned with PIDAT(191).
Output required
LIMIT CONTROL
LMT
@LMT
680
Output
Required
DEAD BAND
CONTROL
BAND
@BAND
681
Output
Required
PID(190)
S
C
D
S: Input word
C: 1st parameter
word
D: Output word
PV input (S) PID control
Mani
p
ulated variable
(
D
)
Parameters (C to C+8)
Executes PID control according to the specified parameters.
PIDAT(191)
S
C
D
S: Input word
C: 1st parameter
word
D: Output word
LMT(680)
S
C
D
S: Input word
C: 1st limit word
D: Output word
Controls output data according to whether or not input data is within
upper and lower limits.
Upper limit
C+1
Lower limit
C
BAND(681)
S
C
D
S: Input word
C: 1st limit word
D: Output word
Upper limit (C+1)
Output
Input
Lower limit (C)
Controls output data according to whether or not input data is within
the dead band range.