Mitsubishi Electric Melsec A Series - Page 199

APPENDICES
------------------- MELSEC-A
(8) Writing to EP-ROM impossible
Since the A2C uses only one ROM, it is impossible to prepare
the ROM
for ROM operation using
the A6WU (in the ROM mode).
It is possible to prepare two ROMs (even-numbered addresses and
odd-numbered addresses) for storage.
APP-25