Omron CS1W-LC001 Operation Manual page 70

Loop control unit
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How to Use Function Blocks for Specific Operations
To perform this specific operation
Analog
Sample PI control
control
PID control with differential gap
Selective control
Using fuzzy control based on
knowledge from ambiguous
expressions
Performing calculation is engineering
Special math
operations
units rather than percentages
Performing special calculations, such
as trigonometric or logrithmic
operation
Calculating statistics (e,g., average,
standard deviation, etc) for time
sequence data
Accumulation
Accumulation (accumulator) of
instantaneous analog signals such as
processing
flowrate signals on the Loop Control
Unit
Continuous accumulation of 4-digit
accumulated value signals (repeat
signals 0000 to 9999) and conversion
to 8-digit signals
Input and accumulation of low-speed
pulse signals such as the power
signal
Notification of accumulated values on
a field mechanical counter for contact
inputs
Batch flowrate capture
Ratio control of accumulated values
Addition of accumulated values
Multiplication of analog signals with
accumulated values
Sequence
AND, OR and other logical operations
control
on the Loop Control Unit
One-shot contact output of the ON
input state when the contact state
changes from OFF to ON and vice
versa only in 1-operation cycles
(system common operation cycle)
Constantly ON contacts and other
system contacts
Step progression control and other
control on the Loop Control Unit
Acceptance of relays in the Step
Ladder Program
Execution of special processing at
each fixed cycle longer than operation
cycle in Step Ladder Program
Execution of timers/counters on the
Loop Control Unit
Changing PID constants and other
parameters in stages according to a
process value (e.g., temperature).
50
Perform the following
Use the ON/OFF Timer block (Block
Model 206).
Use the Constant Item Setting block
(Block Model 171).
Use the Rank Selector block (Block
Model 161).
Use the Fuzzy Logic block (Block Model
016).
Use the Arithmetic Operation block
(Block Model 126).
Use the Time Sequence Data Statistics
block (Block Model 153).
Use the Accumulator for instantaneous
value input block (Block Model 150).
Use the Accumulator for accumulated
value input block (Block Model 184).
Use the Contact input/Accumulated
value output block (Block Model 185).
Use the Accumulated Value
Input/Contact Output block (Block Model
186).
Use the Batch Flowrate Capture block
(Block Model 014).
Use the Batch Flowrate Capture block
(Block Model 014) and the Blended PID
block (Block Model 013).
Use the Accumulated Value Input Adder
block (Block Model 182)
Use the Accumulated Value Analog
Multiplier block (Block Model 183)
Use the Step Ladder Program block
(Block Model 301).
Use the Internal Switch block (Block
Model 209).
Generate a fixed cycle timing signal by
the Clock Pulse block (Block Model
207).
Use the Timer block (Block Model 205)
and the Counter block (Block Model
208).
Use the Level Check block (Block Model
210) and the Constant ITEM Setting
block (Block Model 171) together to
change paramters for other blocks
according to the level.
Section
1-4
See page:
5-2 Examples of Applied
Control Types (page
161) and Function Block
Reference Manual
Function Block
Reference Manual
5-1 Basic Examples of
PID Control (page 152)
and Function Block
Reference Manual
Function Block
Reference Manual
Function Block
Reference Manual
Appendix-1 How to Use
the Step Ladder Program
Block and Function Block
Reference Manual
Function Block
Reference Manual

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