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CHAPTER 4 DEVICES
4
4.8 Extended Data Register (D) and Extended Link Register (W)
(2) Setting method
Since the extended data register (D) and extended link register (W) use the file register area, data must be set for
both the file register setting and the device setting.
(a) File register setting
Select "Use the following file." in the PLC file tab of the PLC parameter dialog box, and do the setting as shown
below. The "Use the same file name as the program." cannot be selected.
*1 The size of file register is the total number of points for the file register (ZR), extended data register (D), and extended
link register (W). Set the size so that the total number of points will be less than the free space of memory specified as a
storage location. The free space can be checked in the Confirm Memory Size window using a programming tool.
[Tool] [Confirm Memory Size]
*2 This is the maximum number of points when an SRAM card (8M bytes) is used.
*3 This is the maximum number of points when a Flash card (4M bytes) is used.
*4 The Q00UCPU, Q01UCPU, High-speed Universal model QCPU, and Universal model Process CPU do not support the
use of memory card.
*5 For the memory size when an extended SRAM cassette is used, refer to Page 391, Section 4.7.2.
Item Corresponding Memory File Name
Capacity
*1
Remarks
"Use the following
file"
Memory card (RAM)
*4
Any
1 to 4086K points
*2
-
Memory card (ROM)
*4
Any
1 to 2039K points
*3
Read only
Standard
RAM
Q00UCPU, Q01UCPU, Q02UCPU
Any
1 to 64K points
-
Q03UD(E)CPU, Q03UDVCPU
*5
1 to 96K points
Q04UD(E)HCPU, Q04UDVCPU
*5
,
Q04UDPVCPU
*5
1 to 128K points
Q06UD(E)HCPU, Q06UDVCPU
*5
,
Q06UDPVCPU
*5
1 to 384K points
Q10UD(E)HCPU, Q13UD(E)HCPU,
Q13UDVCPU
*5
, Q13UDPVCPU
*5
1 to 512K points
Q20UD(E)HCPU, Q26UD(E)HCPU,
Q26UDVCPU
*5
, Q26UDPVCPU
*5
1 to 640K points
Q50UDEHCPU 1 to 768K points
Q100UDEHCPU 1 to 896K points
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