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CJ1-H/CJ1M CPU Unit Ver. 2.0 Upgrades Section 1-5
1-5-9 Operation Start/End Times
Previous CPU Units (Pre-Ver. 2.0 CPU Units)
The time that operation started and the time operation ended were not stored
in the CPU Unit.
CPU Unit Ver. 2.0 or Later
The times that operation started and ended are automatically stored in the
Auxiliary Area.
• The time that operation started as a result of changing the operating
mode to RUN or MONITOR mode is stored in A515 to A517 of the Auxil-
iary Area. The year, month, day, hour, minutes, and seconds are stored.
• The time that operation stopped as a result of changing the operating
mode to PROGRAM mode or due to a fatal error is stored in A518 to
A520 of the Auxiliary Area. The year, month, day, hour, minutes, and sec-
onds are stored.
This information simplifies managing PLC System operating times.
1-5-10 Automatic Detection of I/O Allocation Method for Automatic
Transfer at Power ON
Previous CPU Units (Pre-Ver. 2.0 CPU Units)
Previously with the CJ-series CPU Units, when a parameter file for automatic
transfer at power ON (AUTOEXEC.STD) was recorded in a Memory Card, the
user-set I/O allocation method was automatically used when an automatic
transfer at power ON was executed from the Memory Card, and I/O was allo-
cated according to the parameter file for automatic transfer at power ON. As a
result, the following case occurred:
1,2,3... 1. In an office where Units were not mounted, the CX-Programmer was con-
nected online to just the CPU Unit, and files for automatic transfer at power
ON were created (without creating/transferring I/O tables).
2. These files for automatic transfer at power ON were then saved in the
Memory Card, which was then taken to the remote site where automatic
transfer at power ON was executed.
3. When automatic transfer at power ON was executed, I/O tables were cre-
ated based on the parameter file for automatic transfer at power ON saved
in the Memory Card (i.e., the file created when Units were not mounted to
the PLC). As a result, the registered I/O tables did not match the Units ac-
tually mounted in the CPU Unit, causing an I/O setting error.
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