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Data Control Instructions Section 3-17
3-17 Data Control Instructions
This section describes instructions used to control specific operations.
3-17-1 PID CONTROL: PID(190)
Purpose Executes PID control according to the specified parameters.
Ladder Symbol
Variations
Applicable Program Areas
Parameters The following diagrams show the locations of the parameter data. For details
on the parameters, refer to PID Parameter Settings in this section.
Instruction Mnemonic Function code Page
PID CONTROL PID 190 615
PID CONTROL WITH AUTOTUNING PIDAT 191 627
LIMIT CONTROL LMT 680 637
DEAD BAND CONTROL BAND 681 639
DEAD ZONE CONTROL ZONE 682 642
TIME-PROPORTIONAL OUTPUT TPO 685 644
SCALING SCL 194 652
SCALING 2 SCL2 486 656
SCALING 3 SCL3 487 660
AVERAGE AVG 195 664
PID(190)
S
C
D
S: Input word
C: First parameter word
D: Output word
Variations Executed Each Cycle for ON Condition PID(190)
Executed Once for Upward Differentiation Not supported.
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
Not allowed OK OK Not allowed
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