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Appendix B. Change of unit area allocation
This section describes the differences in unit area allocation in C200HS and CS1. Refer to related manuals for details.
Item
C200HS
CS1
Description
I/O allocation
Basic I/O
"Free location and fixed word allocation" "Free location and free word allocation"
Change the word and bit addresses
used in the program.
For CS1, it is necessary to
register the I/O table.
I/O allocation
Special I/O
IR 100 to IR 199
(10 words allocated for each Unit No.)
DM 1000 to DM 1999
(100 words allocated for each Unit No.)
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.
Refer to the
CS1G/H-
CPU□□H CS Series
Programmable Controllers
OPERATION MANUAL
(Cat.
No. W339) for details on I/O
allocation.
I/O allocation
Group-2
High-density I/O
IR 030 to IR 049
(2 or 4 words allocated for each I/O
word)
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.
Special Relay Area
(SR)
Auxiliary Relay Area
(AR)
SR 236 to SR 255
SR 256 to SR 299
AR 00 to AR 27
(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".
In CS1, operation flags and
condition flags are specified
by labels.
PLC Link Words
SR 247 to SR 250
(in SR Area)
CIO 0247 to CIO 0250
A442
Link Relay Area
(LR)
LR 00 to LR 63
CIO 1000 to CIO 1199
Change the word and bit addresses
used in the program
SYSMAC BUS Area
IR 050 to IR 099
CIO 3000 to CIO 3049
Change the word and bit addresses
used in the program
Optical I/O Unit and
I/O Terminal Area
IR 200 to IR 231
CIO 3100 to CIO 3131
Error Log Area
DM 6000 to DM 6030
A100 to A199
Change the program if the
Error Log Area is read in the
program.
Temporary Relay Area
(TR)
TR 00 to TR 07
TR 00 to TR 15
Holding Relay Area
(HR)
HR 00 to HR 99
H 000 to H 511
Work Area (WR)
IR 030 to IR 235
IR 300 to IR 511
CIO 1200 to CIO 1499
CIO 3800 to CIO 6143
W000 to W511
Appendix C. Change in PLC Settings
Functions which can be configured in the PLC Setup differ between C200HS and CS1.
Although the DM Area (DM 6600 to DM 6655) is allocated for the PLC Setup in C200HS, CS1 does not use the DM Area for the
PLC Setup; the settings are changed from the CX-Programmer or a Programming Console.
Item
C200HS
CS1
Description
PLC Setup
Always uses the DM Area (DM 6600 to
DM 6655).
Uses dedicated area for PLC Setup
(there is no address for setting by
users).
Refer to related manuals for
details.
Appendix D. Change of execution timing etc.
Item
C200HS
CS1
Description
Interrupt execution
method and execution
timing
Write interrupt programs in subroutines. Write interrupt programs in interrupt
tasks.
In CS1, interrupt tasks are
executed even when an
instruction is being executed
or I/O is being refreshed.
Cycle time
-
The cycle time is shortened with CS1.
If the system operation is affected by
cycle time, check the operation after
conversion.
To keep the same cycle time
as C200HS, set Minimum
Cycle Time in the PLC Setup.
Read Protection
function
FUN49
Use password protection function of the
CX-Programmer.
