4
Outline Section 1-1
Loop Control Boards Loop Control Boards (CS1W-LCB01 and CS1W-LCB05) are classified as CS-
series Inner Boards. The CS1W-LCB01 and CS1W-LCB05 Loop Control
Boards must be mounted in a CS1-H CPU Unit. (They will not operate and
cannot be used in a CS1 CPU Unit.)
Loop Control Boards before version 1.5 cannot be used with CS1D-CPU@@S
CS1D CPU Units for Single-CPU Systems.
The following table shows available Loop Control Board models.
Note Sequence tables and Step Ladder Programs cannot be used simultaneously.
Process-control CPU
Units
The Process-control CPU Unit (CS1D-CPU@@P) is a CS1D CPU Unit for
CS1D Duplex Systems. It consists at a Duplex Loop Control Board mounted
in a CS1D CPU Unit. The Duplex Loop Control Board cannot be purchased as
separate products. The Board is sold only when mounted in a CS1D CPU Unit
as a set called the CS1D-CPU@@P Process-control CPU Unit.
The Duplex Loop Control Boards (Inner Boards) included with Process-con-
trol CPU Units cannot be removed and mounted in other CS1D CPU Units.
Note For duplex operation, always use two CS1D Process-control CPU Units of the
same model mounted to a CPU Duplex Backplane.
The following table shows available Process-control CPU Units models.
Note Sequence tables and Step Ladder Programs cannot be used simultaneously.
Unlike Loop Control Boards (CS1W-LCB01 or CS1W-LCB05), the Process-
control CPU Units have the following restrictions.
• External Controller Terminal Blocks (Block Model 045) are not supported.
• The operation cycle for function blocks and the refresh cycle for user link
tables cannot be set to 0.01, 0.02, or 0.05 seconds.
• The minimum operation cycle for function blocks is 5 times the cycle time
of the mounted CS1D CPU Unit and must be set to 0.1, 0.2, 0.5, 1, or
2 seconds.
Model Mountable
PLCs
Duplex Mode Number of control
and operation blocks
Sequence tables
(See note.)
Step Ladder
Programs (See note.)
CS1W-LCB01 CS1-H CPU
Units
Not supported 50 blocks max. Not supported 20 blocks max.
CS1W-LCB05 500 blocks max. Supported 200 blocks max.
Model Duplex
Mode
Number of
control and
operation blocks
Sequence
tables (See
note.)
Step Ladder
Programs (See
note.)
Remarks
CS1D-CPU65P Supported 500 blocks max. Supported 200 blocks max. Select the CS1D-CPU65H as the
PLC type from the Programming
Device.
CPU Unit program capacity:
60 Kwords
CS1D-CPU67P Select the CS1D-CPU67H as the
PLC type from the Programming
Device.
CPU Unit program capacity:
250 Kwords
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