### MELSEC iQ-R Series (Label)

Data Type | Bit Address | Word Address | 32 bit | Remarks
--- | --- | --- | --- | ---
BOOL | Single Tag | <LABELNAME> | - | - | *1 *2 *3
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
INT WORD | Single Tag | - | <LABELNAME> |  | *1 *2 *3
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
REAL TIME | Single Tag | - | <LABELNAME> | - | *1 *2 *3
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
DINT DWORD | Single Tag | - | <LABELNAME> | - | *1 *2 *3
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
STRING | Single Tag | - | <LABELNAME> | - | *1 *2 *3 *4
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
WSTRING | Single Tag | - | <LABELNAME> | - | *1 *2 *3 *7
1D Array | <LABELNAME>[xl] - <LABELNAME>[xh]
2D Array | <LABELNAME>[xl,yl] - <LABELNAME>[xh,yh]
3D Array | <LABELNAME>[xl,yl,zl] - <LABELNAME>[xh,yh,zh]
TIMER | C | <LABELNAME>.C | - | - | *5
S | <LABELNAME>.S
N | - | <LABELNAME>.N |
RETENTIVE TIMER | C | <LABELNAME>.C | - | - | *5
S | <LABELNAME>.S
N | - | <LABELNAME>.N |
COUNTER | C | <LABELNAME>.C | - | - | *5
S | <LABELNAME>.S
N | - | <LABELNAME>.N |
LTIMER | C | <LABELNAME>.C | - | - | *6
S | <LABELNAME>.S
N | - | <LABELNAME>.N
LRETENTIVE TIMER | C | <LABELNAME>.C | - | - | *6
S | <LABELNAME>.S
N | - | <LABELNAME>.N
LCOUNTER | C | <LABELNAME>.C | - | - | *6
S | <LABELNAME>.S
N | - | <LABELNAME>.N

*1<LABELNAME>: For structures, the LABELNAME will include the structure name. The maximum number of characters for the LABELNAME is 255, which includes the delimiter and address.

Ex.)

BOOL type single Label: "BOOLVAR"
BOOL array element: "BOOLARRAY[0012]"
INT type single Label: "INTVAR"
DINT type bit address: "DINTVAR.30"
REAL type 3D array: "REALARRAY[1,2,3]"
INT member of a structure ("TIMER"): "TIMERVAR.N"
STRING type variable: "MYSTRINGVAR"

The following input rules apply to LABELNAME and member names.

- Maximum of 255 single-byte characters.

- You can use alphanumeric characters (uppercase, lowercase), underscore, and double-byte characters (such as kanji).

- The first character cannot be a number.

- You cannot use ! " # $ % ' * & + , . / : ; < = > ? @ [ \ ] ^ ` { | } ~ and spaces.

- You cannot use data type keywords. ("WORD", "BOOL", "ARRAY", and so on)

- Label names are case-insensitive.

- You cannot use names reserved by IEC instructions. (*)

- You cannot use device names defined in MELSEC. (*)

- You cannot use function blocks or function names defined by the manufacturer or MELSEC instruction names. (*)

* BLUE error check cannot identify these names. If you use these names, a communication error will occur. Please refer to the External Device manual for names that are used.

*2The number of elements in each dimension is displayed as l (minimum number of elements) to h (maximum number of elements).

*3Array element numbers defined on a label start from 0.

You can calculate the size of the array with the number of elements in each dimension.

Example)

Word array "Array [0 ...15, 0 ...14, 0 ...13]", evaluates to array size of 3360 (= 16 × 15 × 14).

The maximum size of each device is as follows.

BOOL, INT, WORD, TIMER, COUNTER, RETENTIVETIMER: 2147483648

DINT, DWORD, LTIMER, LCOUNTER, LRETENTIVETIMER, TIME: 1073741824

STRING: 2147483648 ÷ size of STRING device

*4The STRING label defines the maximum number of characters (up to 255 single-byte) in the data type settings.

*5C (coil) and S (contact) are BOOL type devices. N (current value) is a WORD type device.

*6C (coil) and S (contact) are BOOL type devices. N (current value) is a DWORD type device.

*7The WSTRING label defines the maximum number of characters (up to 255) in the data type settings.

NOTE

- You cannot import label data.
- Please refer to the precautions on manual notation for icons in the table.
  Supported Devices Symbol and Terms