Mitsubishi MELSEC Q Series - Device and Address; Device; Address

3-8
3.5 Device and Address
3.5.1 Device
3.5 Device and Address
This section explains the method for expressing programmable controller CPU devices. The
following two types of format are available.
• Device: This format consists of a device name and a device number.
• Address: A format defined in IEC61131-3. In this format, a device name starts with %.
3.5.1 Device
Device is a format that uses a device name and a device number.
For details of devices used in the QCPU, refer to the following
manual.
QCPU User's Manual (Function Explanation, Program
Fundamentals)
3.5.2 Address
Address is a format defined in IEC61131-3.
The following table shows details of format that conforms to IEC61131-3.
Table 3.5.2-1 Address definition specifications
● Position
Position is a major class indicating the position to which
data are allocated in three types: input, output, and
internal.
The following shows the format rules corresponding to the
device format.
• X, J\X (X device) : I (input)
• Y, J\Y (Y device) : Q (output)
• Other devices : M (internal)
Start
1st character:
position
2nd character: data size
3rd character and later:
classification
Number
%
I Input (Omitted) Bit
Numerics used for detailed
classification
Use '.' (period) to delimit the
numbers from the
subsequent numbers.
A period may be omitted.
Number
corresponding to
the device
number (decimal
notation)
Q Output X Bit
M Internal
W Word (16 bits)
D Double word (32 bits)
L Long word (64 bits)
Example)
X0 W35F
Device name Device numbe
r
Example)
X0%I %MX1 . 863
Position Data
size
Classification
Numbe
r