Appendix 3 Buffer Memory; List Of Buffer Memory Addresses - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 3
The buffer memory is used to exchange data between the RJ71GN11-T2 and the CPU module. Buffer memory values are
reset to default when the CPU module is reset or the system is powered off.

List of buffer memory addresses

: Same as the address of P1
P1
Address Address
(decimal) (hexadecimal)
0 to 57343 0 to DFFFH
57344 to 58367 E000H to E3FFH
58368 to 59391 E400H to E7FFH
59392 to 67583 E800H to 107FFH
67584 to 75775 10800H to 127FFH
75776 to 92159 12800H to 167FFH
92160 to 94207 16800H to 16FFFH
94208 to 94463 17000H to 170FFH
94464 to 98559 17100H to 180FFH
98560 to 1245439 18100H to
1300FFH
1245440 to 130100H to
1245441 130101H
1245442 130102H
1245443 130103H
1245444 to 130104H to
1245445 130105H
1245446 130106H
1245447 to 130107H to
1245451 13010BH
1245452 13010CH
1245453 13010DH
1245454 13010EH
1245455 13010FH
1245456 to 130110H to
1245567 13017FH
1245568 to 130180H to
1245695 1301FFH
1245696 to 130200H to
1245697 130201H
1245698 to 130202H to
1245699 130203H

1246176 to 1303E0H to
1246177 1303E1H
1246178 to 1303E2H to
1246179 1303E3H
1246180 to 1303E4H to
1246719 1305FFH
Buffer Memory
P2
Address Address
(decimal) (hexadecimal)
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Name
System area
Link device area Remote input (RX)
Remote output (RY)
Remote register (RWw)
Remote register (RWr)
Link register (LW)
Link relay (LB)
Link special relay (SB)
Link special register (SW)
System area
Timeslot 0 Cycle start offset (ns unit)
information
Cycle start offset (s unit)
System area
Cycle end offset (ns unit)
Cycle end offset (s unit)
System area
VID (VLAN Identifier)
PCP (Priority Code Point)
EtherType
System area
Timeslot 1 to 7 Same as Timeslot 0
information information
System area
RX offset/size Station No.0 RX offset
information
Station No.0 RX size

Station No.120 RX offset
Station No.120 RX size
System area

Appendix 3 Buffer Memory

Initial Read
value Write
0 Read
0 Read,
write
0 Read,
write
0 Read
0 Read,
write
0 Read,
write
0 Read,
write
0 Read,
write
0 Read
A
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
0 Read
APPX
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