Mitsubishi Electric MELSEC Q Series Reference Manual page 216

(b) Device
1.
Open the "Device" tab in the programming tool.
Project window
2.
Change the device points as listed below.
Device
File Register Extended Setting
214
[Parameter]
Item
Latch Relay (L)
Link Relay (B)
Link Register (W)
File Register (ZR (R))
Extended Link (W)
[PLC Parameter]
Device
Device Points
Before change After change
8K 4K
8K 32K
8K 0K
128K 0K
0K 128K