Mitsubishi Q Series Programming Guide

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3 SPECIFICATIONS
MELSEC-Q
3.2.2 Device list of High Performance model QCPU, Process CPU, Redundant
CPU and Universal model QCPU
Table 3.4 indicates the devices that can be used for the transition conditions and operation
outputs of SFC programs.
Table 3.4 Device List
Classification Device Type Expression
User
Assignment
Remarks
Special relay Bit SM0 to SM2047 Decimal
Internal system
devices
Special register Word SD0 to SD2047 Decimal
Fixed
Input X0 to X01FFF Hexadecimal
• Direct processing at
DX
Output Y0 to Y01FFF Hexadecimal
• Direct processing at
DY
Internal relay M0 to M8191 Decimal
Latch relay L0 to L8191 Decimal
Annunciator F0 to F2047 Decimal
Edge triggered
relay
V0 to V2047 Decimal
Link relay
Bit
B0 to B01FFF Hexadecimal
Data register D0 to D12287 Decimal
Link register
Word
W0 to W01FFF Hexadecimal
Normal timer T0 to T2047 Decimal
Retentive timer ST0 to ST2047 Decimal
• Set retentive timers
(ST) in parameter.
• Contact and coil are
bit devices.
Counter
Bit/
word
C0 to C1023 Decimal
• Contact and coil are
bit devices.
Special link relay Bit SB0 to SB07FF Hexadecimal
Special link register Word SW0 to SW07FF Hexadecimal
Internal user
devices
Step relay Bit
S0 to S511/1 block (total of
8192 points for all blocks)
Decimal
Variable
within a total
of 28.75k
words
• Exclusively for SFC
program

Mitsubishi Q Series Specifications

General

Brand	Mitsubishi
Model	Q Series
Category	Control Unit
Language	English