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CHAPTER1 OVERVIEW
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1.4 Devices and Instructions Useful for Programming
1 - 7
(d) Direct access to the buffer memory of the intelligent function module
The buffer memory of the intelligent function module can be used as a device area in a program.
( Section 9.5.1)
(e) Direct access to the link devices
The link devices (LX, LY, LB, LW, SB, or SW) in network modules can be directly accessed without
the refresh setting. (
Section 9.4)
Figure 1.11 Direct access to the buffer memory of the intelligent function module
Figure 1.12 Direct access to the link devices
X0
D0U4\G12
*1
+P
*1:U4\G12
The CPU module can read the
data in the buffer memory
address 12 of the Q64AD.
I/O number: X/Y40 to X/Y4F
Specifying the buffer
memory address
Specifying the I/O number of
the intelligent function module
Power supply module
CPU module
Input module (16 points)
Input module (16 points)
Input module (16 points)
Q64AD (16 points)
Q64AD (16 points)
Q62AD (16 points)
Output module (16 points)
Output module (16 points)
M0
J5\W12
The CPU module can directly read the data in the
link register (LW12) of the number 5 network module.
Network number 5
Specifying the
link register
Specifying the
network number
D0
J5\W12+P
Power supply module
CPU module
Input module (16 points)
Input module (16 points)
Q68AD (16 points)
Q68AD (16 points)
Q62AD (16 points)
Output module (16 points)
Output module (16 points)
QJ71LP21-25