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CS/CJ/NSJ Series Instructions Reference Manual (W474)
Unit Versions of CS/CJ-series CPU Units
Unit Versions A “unit version” has been introduced to manage CPU Units in the CS/CJ
Series according to differences in functionality accompanying Unit upgrades.
Some instructions are supported only by specific versions of a CPU Unit.
Confirm support before programming.
Notation of Unit Versions
on Products
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.
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.)
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.
Product nameplate
Unit version
Example for Unit version 1.0
CJ2H-CPU65-EIP
CPU UNIT
Lot No. 080701 CPU Ver.1.0
OMRON Corporation MADE IN JAPAN
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