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Description of Operation Section 3-2
1: 0.1 sec, 2: 0.2 sec, 3: 0.5 sec, 4: 1 sec, 5: 2 sec (default is 4: 1 sec)
ā1: As an exception, 0 (system common operation cycle) and 5 (2 sec) can-
not be set only in ITEM004 (operation cycle) of the following function
blocks:
Rate-of-change Operation and Alarm (Block Model 113)
Analog Signal Hold (Block Model 118)
Moving Average (Block Model 145)
Ramp Program (Block Model 155)
Segment Program (Block Model 156)
Segment Program 2 (Block Model 157)
Time Sequence Data Statistics (Block Model 153)
Note Before changing ITEM004 (system common operation cycle) of the System
Common block (Block Model 000), be sure to stop running of the Loop Con-
troller, and then resume running of the Unit in the cold start mode. Otherwise,
the Unit does not function normally.
When executing a
specific function
block at a specified
operation cycle
When changing the operation cycle of a specific function block, change
ITEM004 (operation cycle) of the respective function block to one of 1: 0.1
sec, 2: 0.2 sec, 3: 0.5 sec, 4: 1 sec, 5: 2 sec, 6: 0.01 sec, 7: 0.02 sec, or 8:
0.05 sec from the default ā0: common to each block.ā
In this way, you can set the operation cycle of each function block to any one
of five groups (0.1 sec, 0.2 sec, 0.5 sec, 1 sec, 2 sec, 0.01 sec, 0.02 sec, or
0.05 sec) (nine groups if the system common operation cycle is included).
Operation cycle settings of specific function blocks can co-exist with the sys-
tem common operation cycle. This means that certain function blocks can
execute at the system common operation cycle, while other groups can exe-
cute at another operation cycle, for example, 0.1 seconds.
Note The following settings cannot be set for the LCB05D: 0.01 s (10 ms), 0.02 s
(20 ms), and 0.05 s (50 ms).
Common to each block (system common operation
cycle)
Block Block
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