Automatic Detection Of I/O Allocation Method For Automatic Transfer At Power On - Omron CJ - 09-2009 Operation Manual

CJ1-H/CJ1M CPU Unit Ver. 2.0 Upgrades
1-6-10 Automatic Detection of I/O Allocation Method for Automatic
Transfer at Power ON
Previous CPU Units (Pre-Ver. 2.0 CPU Units)
1,2,3...
Office
Create program files for automatic
transfer at power ON
(AUTOEXEC.OBJ) and parameter
files for automatic transfer at
power ON (AUTOEXEC.STD).
CX-Programmer
Program file for automatic
transfer at power ON
(AUTOEXEC.OBJ)
Parameter file for automatic
transfer at power ON
(AUTOEXEC.STD)
52
• 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.
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. 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.
Mail
Memory Card
CJ-series CPU Unit
Automatic I/O allocation at startup
Units not mounted.
Remote site
Units are mounted
I/O not allocated according to settings in mounted Units
User-set I/O allocation
Program file for automatic
transfer at power ON
(AUTOEXEC.OBJ)
Mis-match
(See note.)
Note: The parameter file for automatic transfer
at power ON (AUTOEXEC.STD) is
present, and this file is used to allocated
I/O instead of the I/O allocations in the
mounted Units.
Section 1-6
Parameter file for automatic
transfer at power ON
(AUTOEXEC.STD)