3
Outline Section 1-1
Note Only 100 function blocks can be used on the CS1W-LCB05 if Fuzzy
Logic, Arithmetic Operation, or Time Sequence Data Statistics
blocks are used.
• External controllers (32 function blocks max.): ES100X Controller Termi-
nal
• Logic sequence/step progression control (200 function blocks max. for
CS1W-LCB05, 20 blocks max. for CS1W-LCB01): Step Ladder Program
and Sequence Table (CS1W-LCB05 only)
External I/O
• Each of the points on the Analog I/O Unit and Basic I/O Unit is read and
written by the Field Terminal block (max. 80 function blocks).
• Specified contacts or analog data on the CPU Unit is read and written by
user link tables.
• Data for Control, Operation, and External Controller blocks can be read
and written for SCADA software using the HMI function.
Note The CMND instruction can be executed in the ladder program in the CPU Unit
to send FINS commands to the Loop Control Board to read and write function
block data.
1-1-2 Features
High-speed Execution of Function Blocks for Multi-loop Control with an
Operation Cycle of 10 ms
Function blocks are executed at high speed approximately ten times faster
than for the Loop Control Units. For example, with a standard loop containing
an Ai4 Terminal, a Segment Linearizer, a Basic PID, and an Ao4 Terminal
block, 20 loops can be executed in 10 ms.
All Functions Achieved by Using Only Function Blocks (Operation
Functions/designation Of Field Input/Output)
Wiring function blocks in the software allows you to achieve not only combina-
tions of operation blocks but also all functions including specification of field
I/O.
Almost All Control Types Freely Achieved by Combining Function Blocks
In addition to regular PID control, cascade control, feedforward control, dead
time compensation control, override control and other special control types
can be achieved as desired by combining function blocks for up to 100 loops
for the CS1W-LCB05 or 50 loops for the CS1W-LCB01. Control can also be
easily configured for processes with prolonged dead time, non-linear pro-
cesses, and processes involving fluctuating loads. Changes in control type
after start of operation can also be flexibly accommodated.
Function Blocks with High-speed Execution
The Loop Control Board can be set to operation cycles for control, operation,
and other function blocks to 10 ms, 20 ms, or 50 ms as well as to longer peri-
ods. The shortest operation cycle that could be set for Loop Control Units was
100 ms. With faster execution, for example, four loops of PID control can all be
executed in a 10-ms operation cycle.
High-speed I/O Refreshing with the CPU Unit Using User Link Tables
User link tables can be set to refresh cycles of 10 ms, 20 ms, or 50 ms, and
the Loop Control Board with refresh data with the CPU Unit at the specified
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