Appendix 4 Buffer Memory; List Of Buffer Memory Addresses - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Appendix 4
The buffer memory is used to exchange data between the master/intelligent device module and the CPU module.
Buffer memory values are defaulted when the CPU module is reset or the system is powered off.

List of buffer memory addresses

: Available, : Not available
Address
Hexadecimal Decimal
0H to DFH 0 to 223
E0H to 10FH 224 to 271
110H to 15FH 272 to 351
160H to 18FH 352 to 399
190H to 1DFH 400 to 479
1E0H to 23FH 480 to 575
240H to 2DFH 576 to 735
2E0H to 33FH 736 to 831
340H to 3DFH 832 to 991
3E0H to 40FH 992 to 1039
410H to 45FH 1040 to 1119
460H to 48FH 1120 to 1167
490H to 4DFH 1168 to 1247
4E0H to 50FH 1248 to 1295
510H to 55FH 1296 to 1375
560H to 58FH 1376 to 1423
APPX
128

Appendix 4 Buffer Memory

Buffer Memory
Name Description
Parameter Stores parameter settings.
information
area
■Master station
Remote input
*1
(RX) Stores the input data from slave
stations.
■Intelligent device station
Stores the output data to the
master station.
System area 
■Master station
Remote output
*1
(RY) Stores the output data to slave
stations.
■Intelligent device station
Stores the input data from the
master station.

System area
Remote ■Master station
register Stores the output data to slave
*1
(RWw) stations.
■Intelligent device station
Stores the input data from the
master station.

System area
Remote ■Master station
register Stores the input data from slave
*1
(RWr) stations.
■Intelligent device station
Stores the output data to the
master station.
System area 
Slave station Stores the offset and size of RX
offset, size in each slave station.
information
(RX)
System area 
Slave station Stores the offset and size of RY
offset, size in each slave station.
information
(RY)
System area 
Slave station Stores the offset and size of
offset, size RWw in each slave station.
information
(RWw)
System area 
Slave station Stores the offset and size of
offset, size RWr in each slave station.
information
(RWr)
Read/write Availability
Master Intelligent
Station device
station
 
Read
 
Read
 
Read, write
  
 
Read, write
 
Read
  
Read, write  
 
Read
  
 
Read
Read, write  
  
 
Read
  
 
Read
  
 
Read
  
 
Read
Reference
Page 131
Parameter
information area
Page 133 Remote
input (RX)
Page 133 Remote
input (RX)

Page 133 Remote
output (RY)
Page 133 Remote
output (RY)

Page 134 Remote
register (RWw)
Page 134 Remote
register (RWw)

Page 134 Remote
register (RWr)
Page 134 Remote
register (RWr)

Page 135 Slave
station offset, size
information

Page 135 Slave
station offset, size
information

Page 135 Slave
station offset, size
information

Page 135 Slave
station offset, size
information