Address - Mitsubishi Electric MELSEC Q Series Programming Manual

Address

Address is a format defined in IEC 61131-3. The following table shows details of format that conforms to IEC 61131-3.
Start 1st character:
position
% I: Input
Q: Output
M: Internal
*1 Not supported by FXCPU.
Example)
%I X0 %MX1 . 863
Classification Number
Position Data
size
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.
Device
X, J\X
(X device)
Y, J\Y
(Y device)
Other devices
Data size
Data size is a class indicating the size of data. The following shows the format rules corresponding to the device format.
Device
Bit device
Word device
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.
Page 54 Correspondence between devices and addresses
Long words are used in double-precision real operation instructions of the Universal model QCPU/LCPU.
2nd character: data size
(Omitted) Bit
X Bit
W Word (16 bits)
D Double word (32 bits)
*1
L Long word (64 bits)
3rd character and later:
classification
Numeric characters used for detailed
classification. Use'.' (period) to delimit
the numbers from the subsequent
numbers. A period may be omitted.
Position
I (input)
Q (output)
M (internal)
Data size
X (bit)
W (word), D (double word), L (long word)
4 PROGRAM CONFIGURATION
Number
Number corresponding to the
device number (decimal
notation)
53
4.5 Device and Address
4