Data Register D - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (1/2)
4 Explanation of Devices
4.4 Detailed Explanation of Devices

4.4.10 Data Register D

 The data register is the memory that stores the data in the PLC.
 The data register has a 1-point 16-bit configuration, and can be read and written in 16-bit units.
To handle 32-bit data, two points must be used. The data register No. designated with the 32-bit instruction will be the low-
order 16-bit, and the designated data register No. +1 will be the high-order 16-bit.
Circuit example
(Example) Use of the DMOV instruction is shown below.
0
Data storage
 The data that is stored once in the sequence program is held until other data is stored.
 The data stored in the data register is cleared when the power is turned OFF.
 Values that can be stored:
Decimal -32768 to 32767
Hexadecimal 0 to FFFF
Decimal -2147483648 to 2147483647
Hexadecimal 0 to FFFFFFFF
 Data registers D0 to D2047 are all user release data registers.
IB-1501667-B
DMOV K8X0 D0
D1 D0
High-order 16-bit Low-order 16-bit
(X1F to X10)
(XF to X0)
For 16-bit instruction (Using Dn)
For 32-bit instruction (Using Dn+1, Dn)
The X0 to 1F data is
stored in D0, 1.
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