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CJ1-H/CJ1M CPU Unit Ver. 3.0 Upgrades Section 1-5
This enables backup/restoration of all data in the CPU Unit including I/O com-
ments if an error occurs or when adding a CPU Unit with the same specifica-
tions without requiring a Programming Device.
1-5-5 Free-running Timers
The system timers used after the power is turned ON are contained in the fol-
lowing Auxiliary Area words.
CPU Unit
Simple backup executing
Memory Card
CS/CJ Series
• User program
• Parameters
• I/O memory
Symbol table file
(In comment memory)
Comment file
Program index file
These files can also be backed up using simple backup.
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
0000 hex after reaching FFFF hex
(6,553,500 ms), and then continues
to be automatically incremented 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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