Appendix 2 Buffer Memory; List Of Buffer Memory Addresses - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 2
The buffer memory is used to exchange data between the RJ71PN92 and the CPU module or I/O devices. Buffer memory
values are defaulted when the CPU module is powered off or reset.

List of buffer memory addresses

Address (decimal) Address
(hexadecimal)
0 to 139 0H to 8BH
140 8CH
141 to 16999 8DH to 4267H
17000 4268H
17001 to 17008 4269H to 4270H
17009 to 17016 4271H to 4278H
17017 to 17024 4279H to 4280H
17025 to 17032 4281H to 4288H
17033 to 17040 4289H to 4290H
17041 to 17048 4291H to 4298H
17049 to 17056 4299H to 42A0H
17057 42A1H
17058 to 17117 42A2H to 42DDH
17118 to 17119 42DEH to 42DFH
17120 to 17127 42E0H to 42E7H
17128 to 17135 42E8H to 42EFH
17136 to 17143 42F0H to 42F7H
17144 42F8H
17145 to 17152 42F9H to 4300H
17153 to 17160 4301H to 4308H
17161 to 17168 4309H to 4310H
17169 4311H
17170 to 21857 4312H to 5561H
21858 to 21921 5562H to 55A1H
21922 to 30999 55A2H to 7917H
31000 to 35095 7918H to 8917H
35096 to 35999 8918H to 8C9FH
36000 to 40095 8CA0H to 9C9FH
40096 to 49999 9CA0H to C34FH
50000 to 52087 C350H to CB77H
52088 to 52249 CB78H to CC19H
52250 to 54337 CC1AH to D441H
54338 to 56999 D442H to DEA7H
57000 to 59087 DEA8H to E6CFH
59088 to 59249 E6D0H to E771H
59250 to 61337 E772H to EF99H
61338 to 2097151 EF9AH to 1FFFFFH
Do not write data to "System area". Doing so may cause malfunction of the programmable controller system.
Buffer Memory
Name
System area
Current error area
System area
Data exchange start request
IO device data exchange start method setting area
IO device data exchange management setting area
IO device data exchange management execution request
IO device alarm management area
Data consistency setting area
CPU to PN handshake flag (data consistency setting input area)
CPU to PN handshake flag (data consistency setting output area)
Service execution request 1, Service execution request 2
System area
Module status
IO device data exchange management execution completion
PN to CPU handshake flag (data consistency setting input area)
PN to CPU handshake flag (data consistency setting output area)
Service execution status
IO device alarm indication area
IO device communication status
IO device error
Module error details
System area
IO device error details
System area
Output data area
System area
Input data area
System area
Service request area 1
System area
Service request area 2
System area
Service response area 1
System area
Service response area 2
System area
Initial Read, write
value
0 Read
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read, write
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read, write
0 Read
0 Read, write
0 Read, write
0 Read
0 Read
APPX

Appendix 2 Buffer Memory

A
141