APPX
Appendix 3 Buffer Memory
285
A
Appendix 3 Buffer Memory
The buffer memory is used to exchange data between the master/local module and the CPU module. Buffer memory values
are defaulted when the CPU module is reset or the system is powered off.
For the RJ71EN71 and RnENCPU, add the following value to the buffer memory addresses when setting
"Port 1 Network Type" to "Ethernet" and "Port 2 Network Type" to "CC-Link IE Field".
• Address (decimal): 2000000
• Address (hexadecimal): 1E8480H
List of buffer memory addresses
Address
(decimal)
Address
(hexadecimal)
Name Initial
value
Read, write
0 to 1023 0H to 3FFH Link device area Remote input (RX) 0 Read
1024 to 2047 400H to 7FFH Remote output (RY) Read, write
2048 to 10239 800H to 27FFH Remote register (RWw)
10240 to 18431 2800H to 47FFH Remote register (RWr) Read
18432 to 18463 4800H to 481FH Link special relay (SB) • 18432 to 18433
for read and
write
• 18434 to 18463
for read only
18464 to 18975 4820H to 4A1FH Link special register (SW) • 18464 to 18495
for read and
write
• 18496 to 18975
for read only
18976 to 19455 4A20H to 4BFFH System area
19456 4C00H RX offset/size information Station No.1 RX offset 0 Read
19457 4C01H Station No.1 RX size
19694 4CEEH Station No.120 RX offset
19695 4CEFH Station No.120 RX size
19696 4CF0H Station No.0 RX offset
19697 4CF1H Station No.0 RX size
19698 to 19711 4CF2H to 4CFFH System area
19712 4D00H RY offset/size information Station No.1 RY offset 0 Read
19713 4D01H Station No.1 RY size
19950 4DEEH Station No.120 RY offset
19951 4DEFH Station No.120 RY size
19952 4DF0H Station No.0 RY offset
19953 4DF1H Station No.0 RY size
19954 to 19967 4DF2H to 4DFFH System area
19968 4E00H RWw offset/size information Station No.1 RWw offset 0 Read
19969 4E01H Station No.1 RWw size
20206 4EEEH Station No.120 RWw offset
20207 4EEFH Station No.120 RWw size
20208 4EF0H Station No.0 RWw offset
20209 4EF1H Station No.0 RWw size
20210 to 20223 4EF2H to 4EFFH System area
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