33
Outline Section 1-1
Main functions Operation cycle 100, 200, 500,
1,000, or 2,000 ms
10, 20, 50, 100,
200, 500, 1,000, or
2,000 ms
100, 200, 500,
1,000, or 2,000 ms
Note 1: 10, 20, and
50 ms are not sup-
ported.
Note 2: The opera-
tion cycle must be
set to a minimum of
5 times the CPU
Unit cycle time.
10, 20, 50, 100,
200, 500, 1,000, or
2,000 ms
Execution speed 1 About 10 times
faster than the Loop
Control Unit
About 8 times faster
than the Loop Con-
trol Unit
About 10 times
faster than the Loop
Control Unit
CPU Unit cycle
time restrictions
None None Must be 1/5 the
shortest operation
cycle or less.
None
Speed of data
exchange with
CPU Unit
1 cycle time +
operation cycle
Operation cycle Refreshing split
over multiple CPU
Unit cycles during
Board operation
cycle
Operation cycle
Max. delay before
hot start
Up to one year
after power is
turned OFF.
Up to 24 hours after power is turned OFF
(at an ambient temperature of 25°C).
Up to 5 minutes
after power is
turned OFF (at an
ambient tempera-
ture of 25°C).
Cold start The internal mem-
ory used for oper-
ations is cleared to
0.
The Board reads the function block data that was backed up to
flash memory and also reads the HMI data stored in the CPU
Unit's EM area. The internal memory used for operations is
cleared to 0.
Automatic transfer
from flash memory
to RAM at Power
ON
Executed when
DIP switch pin 2 is
ON.
Executed in a cold start.
Load rate Displayed each
operation cycle.
Changes from the LCB load rate and displays the overall load
rate.
Operation cycle
shift down
The Unit automati-
cally shifts to a
longer operation
cycle when the
load rate exceeds
70%.
The Board does not shift to a longer operation cycle. If the load
rate exceeds 80% for six seconds consecutively, a non-fatal
Inner Board error will occur (operation will continue) and the
High Load Alarm Flag (A42408) will turn ON. If the operations
cannot be executed in the operation cycle, the operation cycle
will be extended and the operations will be executed.
User Link Table
function
None (Expanded
CPU Unit Termi-
nals are used.)
Supported
Memory areas
allocated to the
CPU Unit for
SCADA software
Send and receive
areas of all Blocks
HMI function (specified EM bank)
Contents of CSV
tag files
Allocated Control
Block and Opera-
tion Block ITEMs
set in the CSV
tags.
1) Allocated Control Block, Operation Block, and System Com-
mon Block ITEMs set in the CSV tags.
2) User Link Table tags
Sequence con-
trol/Step progres-
sion control
Performed with the
Step Ladder Pro-
gram.
Performed with either the sequence table or Step Ladder Pro-
gram.
(Note: The CS1W-LCB01 supports step ladder programming
only.)
Area Item Loop Control
Unit
Loop Control
Board
Process-control
CPU Unit
Loop-control CPU
Unit
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