The C2-4000 and C2-5000 series units were updated in November 2006 with larger micro-controllers to handle the extra program space required for CC-300 CORIOconsole compatibility. Previous units cannot be made compatible.

The following is a list of serial numbers for when this change was made. If your unit has a serial number equal to or greater than this one, it is compatible with the CC-300 CORIOconsole.

Model Serial number
======= ==========
C2-4100 4100-00146
C2-4110 4110-00003
C2-5100 5100-00357
C2-5110 5110-00024
C2-5200 5200-00289
C2-5210 5210-00020

There are 2 other quick ways to check compatibility:

Also see C2-4000 & C2-5000 series firmware updates

Note that all 1T-C2, C2-1000, C2-2000 and C2-7000 units are fully
compatible with the CC-300 CORIOconsole.