10
DEVICE EXPLANATION
10.8 Extended Data Register (D) and Extended Link Register (W)
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(3) Setting method
Since the extended data register (D) and extended link register (W) use the file
register area, settings for both file register and device are required.
(a) File register setting
Select the "Use the following file." item at File register on the PLC file tab of PLC
parameter in GX Developer and set the items in Table 10.17. Do not select the
"Use the same file name as the program." item.
* 1: The capacity is the total number of points for the file register (ZR), extended data register (D), and
extended link register (W).
* 2: The capacity indicates the maximum number of points when SRAM card (8M bytes) is used.
* 3: The capacity indicates the maximum number of points when Flash card (4M bytes) is used.
Figure 10.79 Screen for setting the number of points for the file register
Table10.17 File register setting items
Item
Corresponding memory
File name
Capacity
*1
Remarks
"Use the following file."
Memory card (RAM)
Any
1 to 4086k points
*2
--
Memory card (ROM)
Any
1 to 2039k points
*3
Read only
Standard RAM
Q02UCPU
Any
1 to 64k points
--
Q03UDCPU, Q03UDECPU
1 to 96k points
Q04UDHCPU, Q04UDEHCPU
1 to 128k points
Q06UDHCPU, Q06UDEHCPU
1 to 384k points
Q13UDHCPU, Q13UDEHCPU
1 to 512k points
Q26UDHCPU, Q26UDEHCPU
1 to 640k points
Set corresponding
memory, file name,
and capacity.
