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5-8 1. MITSUBISHI PLC
Available Memory
The available memory setting range varies depending on the PLC model. Be sure to set within the
range available with the PLC to be used. Use [TYPE] when assigning the indirect memory for macro
programs.
A Series Link, QnA Series Link, QnH (Q) Series Link, A Series CPU,
QnA Series CPU, QnH (A) Series CPU, QnH (Q) Series CPU,
A Link + Net10
*1 When the A series CPU is in ROM operation, R register cannot be used.
*2 The unit number is required in addition to the memory type and address. Convert byte address
into word address when entering the data on the V-SFT editor if the memory device of link unit is
given byte address.
Memory TYPE Remarks
D (data register) 0
W (link register) 1
R (file register) 2 *1
TN (timer/current value) 3
CN (counter/current value) 4
SPU (special unit) 5 *2
M (internal relay) 6
L (latch relay) 7
B (link relay) 8
X (input relay) 9
Y (output relay) 10
TS (timer/contact) 11
TC (timer/coil) 12
CS (counter/contact) 13
CC (counter/coil) 14
H (link unit buffer memory) 15
SD (special register) 16 QnA, QnH (Q) series only (both link unit and
CPU)
SM (special relay) 17 QnA, QnH (Q) series only (both link unit and
CPU)
SB (special link relay) 18 QnA, QnH (Q) series only (both link unit and
CPU)
SW (special link register) 19 QnA, QnH (Q) series only (both link unit and
CPU)
ZR (file register (continuous access)) 20 QnA, QnH (Q) series only (both link unit and
CPU)