21
CJ1-H and CJ1M CPU Unit Features Section 1-3
executed, the I/O will be allocated by the CPU Unit according to the method
recorded in the Memory Card.
Operation Start/End Times
The times that operation is started and ended are automatically stored in
memory in the Auxiliary Area (A515 to A517). This enables easier manage-
ment of the operating times of the PLC System.
Free-running Timers
The system timers used after the power is turned ON are contained in the fol-
lowing Auxiliary Area words.
Better Compatibility with Other SYSMAC PLCs
C200HE/HG/HX PLCs The AREA RANGE COMPARE (ZCP) and DOUBLE AREA RANGE COM-
PARE (ZCPL) instructions are supported in the CJ1-H CPU Units to provide
better compatibility with the C200HE/HG/HX PLCs.
CVM1/CV-series PLCs The CONVERT ADDRESS FROM CV instruction allows real I/O memory
addresses for the CVM1/CV-series PLCs to be converted to addresses for the
CJ-series PLCs, enabling programs with CVM1/CV-series addresses to be
quickly converted for use with a CJ-series CPU Unit.
Name Address Function Access
10-ms Incrementing
Free Running Timer
A000 This word contains the system timer
used after the power is turned ON.
“A value of 0000 hex is set when the
power is turned ON and this value is
automatically incremented by 1
every 10 ms. The value returns to
0000 hex after reaching FFFF hex
(655,350 ms), and then continues to
be automatically incremented by 1
every 10 ms.
(Unit version 3.0 or later)
Read-only
100-ms Incrementing
Free Running Timer
A001 This word contains the system timer
used after the power is turned ON.
A value of 0000 hex is set when the
power is turned ON and this value is
automatically incremented by 1
every 100 ms. The value returns to A
value of 0000 hex after reaching
FFFF hex (6,553,500 ms), and then
continues to be automatically incre-
mented by 1 every 100 ms.
(Unit version 3.0 or later)
Read-only
1-s Incrementing Free
Running Timer
A002 This word contains the system timer
used after the power is turned ON.
A value of 0000 hex is set when the
power is turned ON and this value is
automatically incremented by 1
every second. The value returns to
0000 hex after reaching FFFF hex
(65,535 s), and then continues to be
automatically incremented by 1
every second.
(Unit version 4.0 or later)
Read-only
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