The option board for the MES interface function for the GOT1000 series (GT16-MESB/GT15-MESB48M) cannot be used for the GOT2000 series.
Use the license of the MES interface function for the GOT2000 series (GT25-MESIFKEY).
In addition, when the BootOS version of the GOT is "C" or earlier, updating the BootOS version to "D" or later is required.
* To update the BootOS version to "D" or later, GT Designer3 (GOT2000) Version1.108N or later is required.
For information on how to update (install) the BootOS, refer to the following.
・ GT Designer3 (GOT2000) Screen Design Manual (SH-081220ENG)
"4.3.2 Transferring data" or
"4.5.3 Installing the BootOS or the CoreOS to the GOT"