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5. Explanation of Devices
5.3 Detailed Explanation of Devices
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5.3.9 File Register R
(1) As with the data registers, the file registers are memories used to store data. However, there are
some that have fixed applications, and those that are released.
(2) The file 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 file register No. designated with the 32-bit
command will be the low-order 16-bit, and the designated file register No. +1 will be the
high-order 16-bit.
(Example) Use of the DMOV command is shown below.
Low-order 16-bit
Circuit example
Data storage
The X0 to 1F data is
stored in R0,1.
R1
R0
~
Higth-order 16-bit
(X1F X10)
(XF X0)
0
DMOV K8X0
R0
~
(3) The data that is stored once in the sequence program is held until other data is stored.
(4) The data stored in the file registers R4000 to R4499 and R6400 to R7199 and the user release
registers R6400 to R7199 is not cleared when the power is turned OFF.
The other file registers have fixed applications such as interface of the PLC and CNC, parameter
interface, etc.
Decimal -32768 to 32767
Hexadecimal 0 to FFFF
}
For 16-bit command (Using Dn)
Decimal -2147483648 to 2147483647
(5) Values that can be stored:
Hexadecimal 0 to FFFFFFFF
}
For 32-bit command
(Using Dn+1, Dn)