Appendix B. Change Of Unit Area Allocation; Appendix C. Change In Plc Settings; Appendix D. Change Of Execution Timing Etc - Omron CS1G-CPU42H Replacement Manual From C200H To Cs

Appendix B. Change of unit area allocation

This section describes the differences in unit area allocation between C200H and CS1. Refer to related manuals for details.
Item
I/O allocation "Free location and fixed word allocation" "Free location and free word allocation"
Basic I/O
I/O allocation IR 100 to IR 199
Special I/O (10 words allocated for each Unit No.)
DM 1000 to DM 1999
(100 words allocated for each Unit No.)
I/O allocation IR 030 to IR 049
Group-2 (2 or 4 words allocated for each I/O
High-density I/O word)
Special Relay Area SR 236 to SR 255
(SR)
Link Relay Area LR 00 to LR 63
(LR)
SYSMAC BUS Area IR 050 to IR 099
Error Log Area DM 969 to DM 999

Appendix C. Change in PLC Settings

Item
Startup mode Setting switch on the memory unit
Constant Cycle Time Constant Cycle Time (FUN18)
function

Appendix D. Change of execution timing etc.

Item
Interrupt execution Write interrupt programs in
method and execution subroutines.
timing
Cycle time -
Read Protection FUN49
function
18
C200H
Change the word and bit addresses
used in the program.
CIO 2000 to CIO 2199
(10 words allocated for each Unit No.)
D20000 to D21999
(100 words allocated for each Unit No.)
Change the word and bit addresses
used in the program.
The allocation is decided in the same
way as Basic I/O Units depending on
the installed position (rack and slot).
Change the word and bit addresses
used in the program.
(1) Auxiliary Area and bits
Change the word and bit addresses
used in the program.
(2) Condition flags and clock pulses
Change the arithmetic flags in the
program to the condition flags. Clock
pulses are specified using global
symbols, such as "P_0.1ms" and
"P_1ms".
CIO 1000 to CIO 1063
Change the word and bit addresses
used in the program.
CIO 3000 to CIO 3049
Change the word and bit addresses
used in the program.
A100 to A199
C200H
Set Startup Mode in the PLC Setup.
Set Cycle Time in the PLC Setup.
C200H
Write interrupt programs in interrupt
tasks.
The cycle time is shortened with CS1.
If the system operation is affected by
cycle time, check the operation after
conversion.
Use password protection function of the
CX-Programmer.
CS1
For CS1, it is necessary to
register the I/O table.
Refer to the
CS1G/H-CPU□□H CS Series
Programmable Controllers
OPERATION MANUAL (Cat.
No. W339) for details on I/O
allocation.
In CS1, operation flags and
condition flags are specified
by labels.
Change the program if the
Error Log Area is read in the
program.
CS1
Use the DI (DISABLE
INTERRUPTS) instruction and
EI (ENABLE INTERRUPTS)
instruction to maintain
concurrency between cyclic
tasks and interrupt tasks.
CS1
In CS1, interrupt tasks are
executed even when an
instruction is being executed
or I/O is being refreshed.
To keep the same cycle time
as C200H, set Minimum Cycle
Time in the PLC Setup.
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