OMRON CJ1G-CPU43H CPU
OMRON CJ1G-CPU43H CPU
A “unit version” has been introduced to manage CPU Units in the CS/CJ
Series according to differences in functionality accompanying Unit upgrades.
This applies to the CS1-H, CJ1-H, CJ1M, and CS1D CPU Units.
The unit version is given to the right of the lot number on the nameplate of the
products for which unit versions are being managed, as shown below.
Product nameplate
CS1H-CPU67H
CPU UNIT
Lot No.
Lot No. 040715 0000 Ver.3.0
OMRON Corporation
MADE IN JAPAN
Unit version
Example for Unit version 3.0
• CS1-H, CJ1-H, and CJ1M CPU Units manufactured on or before Novem
ber 4. 2003 do not have a unit version given on the CPU Unit (i.e., the
location for the unit version shown above is blank).
• The unit version of the CJ1-H-R CPU Units begins at version 4.0.
• The unit version of the CS1-H, CJ1-H, and CJ1M CPU Units, as well as
the CS1D CPU Units for Single-CPU Systems, begins at version 2.0.
• The unit version of the CS1D CPU Units for Duplex-CPU Systems, begins
at version 1.1.

CJ1G-CPU43H
• CPU Units for which a unit version is not given are called Pre-Ver. @.@
CPU Units, such as Pre-Ver. 2.0 CPU Units and Pre-Ver. 1.1 CPU Units.
Confirming Unit Versions
with Support Software
CX-Programmer version 4.0 can be used to confirm the unit version using one
of the following two methods.
• Using the PLC Information
• Using the Unit Manufacturing Information (This method can be used for
Special I/O Units and CPU Bus Units as well.)
Note CX-Programmer version 3.3 or lower cannot be used to confirm unit versions.
PLC Information
• If you know the device type and CPU type, select them in the Change
PLC Dialog Box, go online, and select PLC – Edit – Information from the
menus.
• If you don’t know the device type and CPU type, but are connected
directly to the CPU Unit on a serial line, select PLC – Auto Online to go
online, and then select PLC – Edit – Information from the menus.
In either case, the following PLC Information Dialog Box will be displayed.
User programs that contain functions supported only by CPU Units with unit
version 4.0 or later cannot be used on CS/CJ-series CPU Units with unit ver
sion 3.0 or earlier. An error message will be displayed if an attempt is made to
download programs containing unit version 4.0 functions to a CPU Unit with a
unit version of 3.0 or earlier, and the download will not be possible.
If an object program file (.OBJ) using these functions is transferred to a CPU
Unit with a unit version of 3.0 or earlier, a program error will occur when oper
ation is started or when the unit version 4.0 function is executed, and CPU
Unit operation will stop.