Download Transition from MELSEC-A/QnA (Large Type), AnS/QnAS (Small

2
SERIAL COMMUNICATION MODULE REPLACEMENT
:Compatible,
Buffer memory address
QnA series
HEX
DEC
800H
2048
801H to
9FFH
:Partial change required, ×:Incompatible
Buffer memory name
AJ71QC24N
AJ71QC24N-R2
AJ71QC24N-R4
QnAS series
Q series
A1SJ71QC24N1
A1SJ71QC24N1-R2
QJ71C24N
QJ71C24N-R2
QJ71C24N-R4
CH2 transfer buffer memory
CH2 transfer buffer memory
Send data count specification area
Send data count specification area
2049 to
2559
Send data specification area
Send data specification area
A00H
2560
Receive data count specification area
Receive data count specification
area
A01H to
2561 to
3071
Receive data storage area
Receive data storage area
BFFH
C00H to
3072 to
6911
User free area
User free area
6912 to
8182
User frame
registration area
User registration area
1FFFH
8183 to
8191
System area
(use prohibited)
System area
(use prohibited)
2000H
8192
2001H to
8193 to
32767
1AFFH
1B00H to
1FF6H
1FF7H to
7FFFH
Flash ROM write enable/disable
specification area
(Area for new function)
Compatibility
Precautions for
replacement
-
An additional
sequence program is
required depending
on the functions to be
used.
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