Mitsubishi Electric · MELSEC iQ-R Motion Controller
This moderate error arises when the operating system software version is "25" or earlier, and the MT Developer2 options screen has the number of words used set to "1 word". This incompatibility causes an error upon powering on a Multiple CPU system after installation, as the older OS does not support this 1-word setting.
Click steps to track your progress.
Verify the operating system software version; it must be "26" or later for 1-word setting functionality.
Check the "Number of words used" setting in the MT Developer2 options screen; if using OS version 25 or earlier, it must not be set to "1 word".
Update the operating system software to version "26" or later.