Mitsubishi Electric MELSEC Q Series Structured Programming Manual page 70

(a) Specifying a range of index registers used for a 32-bit index setting
4.6 Index Setting
4-46
1) Values from
The following shows how the index is set.
2) Specification method
When setting indexes in 32-bit range, specify the start number of index
registers to be used in "Indexing Setting for ZR Device" setting in the
<<Device>> tab of the PLC parameter.
Figure 4.6-2 Index setting for ZR device on the parameter setting screen
When changing the start number of index registers to be used in the device
setting of the PLC parameter, do not change nor write only parameters to the
programmable controller. Always write parameters along with the program to the
programmable controller.
If data are forcibly written, the operation error "CAN'T EXE. PRG." (error code:
2500) occurs.
3) Devices that can be used for index settings
Only the following devices can be used for index settings.
Device
ZR
D
W
*3
M
*3
B
*3
D
*3
W
*3
Un\B
*3
Un\W
*3: The devices can be used for High-speed Universal model QCPU only.
2147483648 to 2147483647 can be set to index registers.
X0
DMOV
EN ENO
s d
40000
X0
MOV
EN ENO
s d
ZR10Z0
Index setting
Description
Serial number access file register
Extended data register
Extended link register
Internal relay
Link relay
Data register
Link register
Link relay
Link register
Stores 40000 to Z0
Var_Z0
Stores the data of
ZR {10+40000} = ZR40010 to D0
D0