Mitsubishi MELSEC-Q Series Programming Manual page 69

(4) Applying index settings to extended data registers (D) and extended link registers (W)
(for Universal model QCPU (excluding Q00UJCPU), and LCPU)
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) 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
MOV
EN
s
1234
The index setting that crosses
internal user device and extended
data register cannot be applied.
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
Z0=0
ENO
d
D100Z0
Z0=20000
D device image
Z0 = 0
D100
D1100
Z0 = 1000
Z1 = 0
D20000
D22000
Z1 = 2000
D device image
D100
Internal user device
D20100
Extended data register
4.6 Index Setting
Internal user
device
Extended deta
register
4
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