Mitsubishi Electric MELSEC Q Series Programming Manual page 66

Applying index settings to extended data registers (D) and extended link registers (W)
As an index setting can be applied to internal user devices, data registers (D) and link registers (W), the device specification
by the index setting can be used within the range of extended data registers (D) and extended link registers (W).
User program
EN
s
1234
EN
s
1234
*1 For Universal model QCPU (excluding Q00UJCPU), and LCPU
■Index settings that cross internal user devices and extended data registers (D)/extended link
registers (W)
An index setting that crosses internal user devices and extended data registers (D)/extended link registers (W) cannot be
applied. If the device range check is enabled at the index setting, an error occurs. (Error code: 4101)
User program
EN
s
1234
The index setting that crosses
internal user device and extended
data register cannot be applied.
4 PROGRAM CONFIGURATION
64
4.6 Index Setting
The index setting applied to
the internal user device
MOV
ENO
d
D100Z0
MOV
ENO
d
D20000Z1
The index setting applied to
the extended data register
The index setting applied to
the internal user device
MOV
ENO
d
D100Z0
D device image
Z0 = 0
D100
D1100
Z0 = 1000
Z1 = 0
D20000
D22000
Z1 = 2000
D device image
Z0=0
D100
D20100
Z0=20000
Internal user
device
Extended data
register
Internal user device
Extended data register
*1