Unit Versions And Cx-Programmer Versions - Omron CJ1W- ECT21 Operation Manual

Unit Versions
In the IO Table Window, right-click the Unit to check the Unit Version and select Unit Manufacturing
Information.
The following Unit Manufacturing Information Dialog Box will be displayed.

Unit Versions and CX-Programmer Versions

The functions that are supported depend on the unit version of the Unit. The version of CX-Programmer
that supports the functions that were added for an upgrade is also required to use those functions.
Refer to A-7 Version Information on page A-33 for the functions that are supported by each version.
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CJ-series EtherCAT Slave Units Operation Manual (W541)