Bit Data (Double Word Data) - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Handling 16-bit data with word devices/labels
■Word device
One point of word device can handle 16-bit data.
■Word type label
One point of word type label can handle 16-bit data.

32-bit data (double word data)

Data size and data range
32-bit data includes signed and unsigned 32-bit data.
In signed 32-bit data, a negative number is represented in two's complement.
Data name
Signed 32-bit data
Unsigned 32-bit data
Handling 32-bit data with bit devices
A bit device can be handled as 32-bit data by performing nibble specification.
Item
Bit device
Handling 32-bit data with bit type array labels
A bit type array label can be handled as 32-bit data by performing nibble specification.
The following table shows the notation for handling a bit type array label as 32-bit data by nibble specification.
Item
Bit type array label
Data size Value range
Decimal notation
32 bits (2 word) -2147483648 to 2147483647
0 to 4294967295
Notation
KBit device start number
: Number of digits (Specify the number within the range from 1 to 8.)
Notation
KLabel name
: Number of digits (Specify a number within the range of 1 to 8.)
Hexadecimal notation
00000000H to FFFFFFFFH
Example
K8X10
K6B018
Example
K8L_BOOL
1 OVERVIEW
1.2 Data Specification Method
1
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