75
Comparison to CS-series PLCs Section 1-10
Note Use a CJ1W-BAT01 Battery for the CJ1M CPU Unit.
Registered
I/O tables
Support Supported (but operation is possible with-
out creating I/O tables from a Program-
ming Device).
Supported (must be created from Pro-
gramming Device).
Modes Either user-set I/O tables or automatic I/O
allocation at startup (no I/O table verifica-
tion).
The default setting is for Automatic I/O
Allocation at Startup. User-set I/O tables
can be automatically used by setting and
transferring I/O tables (or parameter file).
If the I/O tables are deleted from a CPU
Unit from the CX-Programmer, Automatic
I/O Allocation at Startup will be used
again.
Only user-specified I/O tables (I/O tables
can be verified against actual I/O).
Allocating unused
words
Possible only by using user-set I/O tables
(set by editing I/O tables on the CX-Pro-
grammer and transferring them to the
CPU Unit).
Always possible. (Set by editing I/O tables
on the CX-Programmer and transferring
them to the CPU Unit.)
Discrepancies between regis-
tered I/O tables and actual I/O
I/O setting error occurs (fatal error). (With-
out Backplanes and due to the physical
connection method, it is essentially
impossible for a Unit to fall off or for an
empty position to be created. Discrepan-
cies between the registered I/O tables and
actual I/O are thus considered to be far
more serious.)
I/O verify error occurs (non-fatal error).
Setting first word on each Rack Supported. Supported.
Startup Mode when a Program-
ming Console is not mounted and
the PLC Setup is set to use oper-
ating mode specified on the Pro-
gramming Console
RUN mode
Serial communications ports One peripheral port and one RS-232C port.
Serial com-
munications
modes
Peripheral port Same: Peripheral bus, Programming Console, Host Link, 1:N NT Link
RS-232C port Same: Peripheral bus, Host Link, 1:N NT Link, no protocol
Communications commands FINS commands, Host Link commands
Index registers Same
Diagnostic functions Same
Error log function Same
Debugging functions Same (Force-set/reset, differential monitor, data traces, instruction error traces)
I/O response time setting func-
tions
Same
Battery (See note.) CPM2A-BAT01 CS1W-BAT01
Item CJ-series PLCs, CJ1-H CPU Units CS-series PLCs, CS1-H CPU Units
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