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4 ABOUT QD51 (-R24) FUNCTIONS
4.5.3 Reading and writing data from/to the programmable controller CPU
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Data can be written to and read from the programmable controller CPU's device
memory directly by a QD51 (-R24) BASIC program.
Programmable controller CPU
Sequence Program
Refer to the Programming Manual (Commands) for the details of the device memories
to and from which data can be written and read by the BASIC program.
[Commands and functions used]
The commands and functions used to write data to and read data from the
programmable controller CPU's device memory are shown below.
Command, Function Name
PCRD
PCWT
Device Memory
Reading of data
• Bit device
X, Y, M, L, S,
B, F, T, C, etc.
• Word device
(T, C, D, W, R, etc.)
Writing of data
Processing Contents
:
Reads data from the programmable controller CPU.
:
Writes data to the programmable controller CPU.
MELSEC-Q
QD51(-R24)
BASIC
program
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