Chapter 21 Devices; Device List - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

21
DEVICES
This chapter describes the devices.
21.1

Device List

This section lists the devices.
Classification Type
User device Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit/word
Bit/word
Bit/double word
Bit/double word
Bit/word
Bit/double word
Word
Word
Word
Bit
System Device Bit
Bit
Word
Bit
Word
Link Direct Device Bit
Bit
Bit
Bit
Word
Word
Module access Word
device
CPU buffer memory Word
access device
Index register Word
Double word
File register Word
Refresh data Word
register

Nesting
21 DEVICES
330
21.1 Device List
Device name Symbol
Input X
Output Y
Internal relay M
Link relay B
Annunciator F
Link special relay SB
Edge relay V
*3
Step relay S
Timer T
Retentive timer ST
Long timer LT
Long retentive timer LST
Counter C
Long counter LC
Data register D
Link register W
Link special register SW
Latch relay L
Function input FX
Function output FY
Function register FD
Special relay SM
Special register SD
Link input Jn\X
Link output Jn\Y
Link relay Jn\B
Link special relay Jn\SB
Link register Jn\W
Link special register Jn\SW
Module access device Un\G
CPU buffer memory U3En\G
access device
U3En\HG
Index register Z
Long index register LZ
File register R/ZR
Refresh data register RD
Nesting N
Number of points Parameter-set range
of Default
*5
12K points Unchangeable
*5
12K points
*5
12K points Changeable ( Page
331 Device Setting)
8K points
2K points
2K points
2K points
0 points
*5
1K points
0 points
*5
1K points
0 points
*5
512 points
*5
512 points
*5
18K points
8K points
2K points
8K points
16 points Unchangeable
16 points
5 points  4 words
4K points
4K points
16384 points Unchangeable
*1
(Max.)
16384 points
*1
(Max.)
32768 points
*1
maximum
*1
512 points (Max.)
131072 points
*1
maximum
*1
512 points (Max.)
268435456 points Unchangeable
*1
(Max.)
268435456 points Unchangeable
*1
(Max.)
12288 points Changeable
maximum
20 points Changeable (Page
354 Index register
2 points
setting)
0 points Changeable
512K points Changeable
15 points Unchangeable
Notation
Hexadecimal
Hexadecimal
Decimal
Hexadecimal
Decimal
Hexadecimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Hexadecimal
Hexadecimal
Decimal
Hexadecimal
Hexadecimal
Decimal
Decimal
Decimal
Hexadecimal
Hexadecimal
Hexadecimal
Hexadecimal
Hexadecimal
Hexadecimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal
Decimal