Mitsubishi Electric MELSEC-A Series User Manual page 201

APPENDICES
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4.5 A6WU
Versions "E" and later are applicable for use with the A2C. Versions "D" and
earlier cannot prepare the ROM (for ROM operation) for use with the A2C. It
is possible to prepare two, even and odd ROMs for storage.
(1) Connection to the A2C
The A6WU can be connected to the A2C only by the hand held system.
(The add-on system cannot be used.)
(2) When connected to the A6PHP
To prepare the ROM (for ROM operation) for use with the A2C by
connecting to the A6PHP, the two conditions mentioned below must be
satisfied.
(a) Boot the A6PHP with the SW4GP-GPPA system.
(b) Use the A6WU of version "E" or later.
Even though these two conditions are not satisfied, it is possible to
prepare two (even-numbered addresses and odd-numbered ad-
dresses) for storage.
(3) When connected to the A6HGP
Since the A6HGP is not adapted to use with the A2C, it is impossible to
prepare the ROM (for ROM operation) for use with the A2C. It is
possible to prepare two (even-numbered addresses and odd-num-
bered addresses) for storage.
APP-27