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10.8 Extended Data Register (D) and Extended Link Register (W)
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DEVICE EXPLANATION
(b) Device setting
Set the number of points for each file register (ZR), extended data register (D),
and extended link register (W) at File register extended setting on the Device tab
of PLC parameter in GX Developer.
Assign a part of points set for the file register (ZR) on the PLC file tab of PLC
parameter to the extended data register (D) and extended link register (W).
Set the latch range if data needs to be latched.
• Latch (2) of the file register (ZR)
• Latch (1) and (2) of the extended data register (D)
• Latch (1) and (2) of the extended link register (W)
Once the number of device points for the extended data register (D) and extended
link register (W) is set, areas for these devices are reserved in the file register file.
Figure 10.80 File register extended setting
Figure 10.81 Areas for extended data register (D) and extended link register (W)
The number of point set for file register on the PLC file tab is displayed.
Set the latch range if data needs to be latched.
Set the number of device points so that
the total equals to the point set for file register
on the PLC file tab.
Device
Internal user device
File register file
Extended data
register
Data register
Number of points
set for data
register
Number of
points set
for file
register
Areas for extended
data register and
extended link register
(in this order) are
reserved following the
area reserved by the
number of points set
for file register.
Number of
points set
for extended
data register
Number of
points set
for extended
link register
D0
ZR0
D12287
D12287
D12288
ZR210943
D12288
D63487
M2000
D0
D63487
Actual area
