Mitsubishi MELSEC Q Series Structured Programming Manual

3.5 Device and Address
3.5.2 Address
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3
FUNCTIONS
● Data size
Data size is a class indicating the size of data.
The following shows the format rules corresponding to the device format.
• Bit device : X (bit)
• Word device : W (word), D (double word), L (long word)
● Classification
Classification is a minor class indicating the type of a device that cannot be identified only by its
position and size.
Devices X and Y do not support classification.
For the format corresponding to the device format, refer to the following section.
Appendix 2 Correspondence between Devices and Addresses
Long words are used in double-precision real operation instructions of the
Universal model QCPU.

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English