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3 SPECIFICATIONS
MELSEC-Q
Classification Device Type Expression
User
Assignment
Remarks
Link input J \ X0 to J \ X01FFF Hexadecimal
Link output J \ Y0 to J \ Y01FFF Hexadecimal
Link relay
J
\ B0 to J \ B03FFF
(J \ B0 to
J
\ B07FFF) *1
Hexadecimal
Link special relay
Bit
J \ SB0 to J \ SB07FF Hexadecimal
Link register
J
\ W0 to J \ W03FFF
(J
\ W0 to
J \ W07FFF) *1
Hexadecimal
Link direct
devices
Link special
register
Word
J
\ SW0 to J \ SW07FF Hexadecimal
Fixed
• Devices on the left
exist in each link
module.
•
indicates the
network No., any of
1 to 239 and 254.
Intelligent function
module device
Word U
\ G0 to U \ G65535 Decimal
Fixed
(depending
on
intelligent
function
module)
• Exist in each special
function
module/intelligent
function module.
•
indicates the I/O
No. /16, any of 0 to
0FF.
Module access
devices
Common device
for multiple CPU
Word
U3En \ G0 to U
\ G4095
(U3En \ G10000 to
U3En \ G24335) *2
Decimal Fixed
Index register/
Standard device
Resister *3
Index register/
Standard device
Resister *3
Word Z0 to Z15(Z0 to Z19) *4 Decimal Fixed
R0 to R32767 Decimal
• When block
switching is used
File register File register Word
ZR0 to ZR1042431
(ZR0 to ZR4182015) *4
Decimal
Fixed
• When serial number
access is used
Pointer Pointer
P0 to P4095 Decimal Fixed
SFC block BL0 to BL319 *5 Decimal
SFC transition
device *6
Bit
TR0 to TR511/block
(Total of 8192 points for all
blocks)
Decimal
• Exclusively for SFC
program
Network No. J1 to J239, J254 Decimal
Other
I/O NO
U0 to U0FF Hexadecimal
Fixed
*1: The brackets show the setting range when the MELSECNET/G is used in the Universal model QCPU.
*2: The brackets show the setting range when the Universal model QCPU (except Q02UCPU) is used.
*3: The standard device register can only be used in the Universal model QCPU.
*4: The brackets show the setting range when the Universal model QCPU is used.
*5: BL0 to BL127 for the Universal model QCPU (Q02UCPU)
*6: The Universal model QCPU cannot the SFC transition switch.
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