Buffer Memory - Mitsubishi Electric MELSEC-A0J2H Series Handbook

8
REPLACING THE COMMUNICATION MODULES
Output signal
Y12
Y13
Y14
Y15
Y16
Y17
Y18
Use prohibited
Y19
Y1A
Y1B
Y1C
Y1D
Y1E
Y1F

8.5.2 Buffer memory

Buffer memory assignment on the A0J2-C214S1 and the Q series serial communication module is not
compatible.
Initialize settings using the intelligent function module setting of GX Works2 or GX Configurator-SC and
create a new sequence program.
The following table shows the main assigned areas for the initial setting and transmission/reception
setting at default.
Buffer memory address
Hexadecimal Decimal
0H 0
1H 1
to to
7FH 127
80H 128
81H 129
to to
FFH 255
100H 256
101H 257
102H 258
103H 259
to to
7FFH 2047
8
- 9
A0J2-C214S1
A0J2-C214S1
Buffer memory name
Nonprocedural send data count storage
area
Send data storage area
Nonprocedural receive data count
storage area
Receive data storage area
Nonprocedural reception end code
designation area
Error LED indication area
Error LED off request area
User free buffer memory
Signal name
Output signal
Y12 Modem disconnection request
Y13 Use prohibited
Y14 Notification-issued request
Y15
Use prohibited
Y16
Y17 Flash ROM read request
Y18 Flash ROM write request
Y19 Flash ROM system setting write request
Y1A
Use prohibited
Y1B
Y1C System setting default request
Y1D
Y1E Use prohibited
Y1F
: Compatible,
Compat-
Precautions for replacement
ibility
Use addresses 400H, 800H (1024, 2048) as transmission data
count specification areas on the Q series.
Use addresses from 401H, 801H (1025, 2049) as transmission
data specification areas on the Q series.
Use addresses 600H, A00H (1536, 2560) as receive data
count storage areas on the Q series.
Use addresses from 601H, A01H (1537, 2561) as receive data
storage areas on the Q series.
Use addresses A5H, 145H (165, 325) as receive end code
designation areas on the Q series.
Use addresses 201H, 202H (513, 514) for LED or
communication error information initialization requests on the Q
series.
Use addresses 0H, 1H (0,1) for LED or communication error
information initialization requests on the Q series.
Use addresses C00H to 1AFFH (3072 to 6911) as user free
buffer memory areas on the Q series.
QJ71C24N(-R2/R4)
: Partially changed, × : Incompatible