Mitsubishi MELSEC QS Series, User Manual

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9
DEVICE EXPLANATION
9.1 Device List
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CHAPTER9 DEVICE EXPLANATION
This chapter describes all devices that can be used in the CPU module.
9.1 Device List
The names and data ranges of devices which can be used in the CPU module are shown
in Table9.1.
* 1 : For the timers, retentive timers and counters, their contacts and coils are bit devices and their
current values are word devices.
* 2 : Can be changed in the PLC parameter dialog box of GX Developer. (Except the input, output, step
relay, link special relay and link special register.) ( Section 9.2)
Table9.1 Device List
Class Type Device Name
Default Values Parameter
Designated
Setting Range
Reference
Section
Number of
Points
Range Used
Internal user
devices
Bit
devices
Input 6144 points X0 to 17FF Hexadecimal
Changeable
within
12384 words.
*2
Section 9.2.1
Output 6144 points Y0 to 17FF Hexadecimal Section 9.2.2
Internal relay 6144 points M0 to 6143 Decimal Section 9.2.3
Annunciator 1024 points F0 to 1023 Decimal Section 9.2.4
Edge relay 1024 points V0 to 1023 Decimal Section 9.2.5
Link relay 2048 points B0 to 7FF Hexadecimal Section 9.2.6
Special link relay 1536 points SB0 to 5FF Hexadecimal Section 9.2.7
Word
devices
Timer
*1
512 points T0 to 511 Decimal
Section 9.2.8
Retentive timer
*1
0 points -- Decimal
Counter
*1
512 points C0 to 511 Decimal Section 9.2.9
Data register 6144 points D0 to 6143 Decimal Section 9.2.10
Link register 2048 points W0 to 7FF Hexadecimal Section 9.2.11
Link special
register
1536 points SW0 to 5FF Hexadecimal Section 9.2.12
Internal
system
devices
Bit
devices
Special relay 5120 points SM0 to 5119 Decimal
Unchangeable
Section 9.3.1
Word
devices
Special register 5120 points SD0 to 5119 Decimal Section 9.3.2
Nesting -- Nesting 15 points N0 to 14 Decimal Unchangeable Section 9.4
Constants --
Decimal constants K-2147483648 to 2147483647 Section 9.5.1
Hexadecimal
constants
H0 to FFFFFFFF Section 9.5.2