Omron CJ - 09-2009 Operation Manual page 69

CJ1-H and CJ1M CPU Unit Features
Operation Start/End Times
Free-running Timers
Better Compatibility with Other SYSMAC PLCs
C200HE/HG/HX PLCs
CVM1/CV-series PLCs
executed, the I/O will be allocated by the CPU Unit according to the method
recorded in the Memory Card.
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.
The system timers used after the power is turned ON are contained in the fol-
lowing Auxiliary Area words.
Name Address
10-ms Incrementing A000
Free Running Timer
100-ms Incrementing A001
Free Running Timer
1-s Incrementing Free A002
Running Timer
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.
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.
Function
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)
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)
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)
Section 1-3
Access
Read-only
Read-only
Read-only
21