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Loop-control CPU Units
Overview Loop-control CPU Units are CPU Units with a pre-installed Loop Controller
functional element.
Note The Loop Controller functional element is an inseparable part of the CPU Unit
and cannot be removed.
Model Numbers,
Functional Elements,
and Versions
The CJ1G-CPU@@P Loop-control CPU Unit is comprised of a CPU Unit ele-
ment with the same functionality as a CJ1G-CPU@@H CPU Unit with version
3.0 or later (see note) and a Loop Controller element. The following table lists
the model numbers for CJ1G Loop-control CPU Units, the types of CPU Unit
element, Loop Controller element, and the functional element version codes.
Note A single unit version for the Loop-control CPU Unit as a whole is not provided.
The unit versions for the CJ1-H CPU Unit with unit version 3.0 or later and the
functional element version code.
Differences between
CJ1G-CPU@@H and
CPU Unit Elements
The differences between the CPU Unit element in the Loop-control CPU Unit
and the CJ1G-CPU@@H CPU Unit are shown here. The two types of CPU
Unit are otherwise the same.
Note The functions added in the version upgrade for unit version 3.0 and later are
also the same.
Additional Auxiliary Area
Flags and Bits
Loop-control CPU Units can use the following Auxiliary Area flags and bits,
which are not supported for CJ1G-CPU@@H CPU Units.
For details on the Auxiliary Area bits and flags, refer to the section on SYS-
MAC CS/CJ Series Loop Control Boards, Process-control CPU Units, Loop-
control CPU Units Operation Manual (W406).
Product name Product model
number
Configuration
CPU Unit element Loop Controller element
CPU Unit model
with same function-
ality
Functional ele-
ment unit ver-
sion
Functional ele-
ment name
Func tional ele-
ment version
Loop-control
CPU Units
CJ1G-CPU42P CJ1G-CPU42H Ver. 3.0 or higher LCB01 Ver. 2.0
CJ1G-CPU43P CJ1G-CPU43H Ver. 3.0 or higher LCB03 Ver. 2.0
CJ1G-CPU44P CJ1G-CPU44H Ver. 3.0 or higher LCB03 Ver. 2.0
CJ1G-CPU45P CJ1G-CPU45H Ver. 3.0 or higher LCB03 Ver. 2.0
Address Name
Word Bit
A424 00 Inner Board WDT Error Flag (fatal error)
01 Inner Board Bus Error Flag (fatal error)
02 Cyclic Monitor Error Flag (fatal error)
03 Flash Memory Data Error Flag (fatal error)
04 Incompatible CPU Unit Error Flag (non-fatal error)
08 Loop Controller High Load Flag (non-fatal error)
11 Backup Data (Flash Memory) Error Flag
12 Specified EM Bank Unusable Error Flag
A608 00 Inner Board Restart Bit
A609 01 Start Mode at Power ON: Hot Start
A609 02 Start Mode at Power ON: Cold Start
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