Mitsubishi Electric MELSEC Q Series Programming Manual page 63

• Devices that can be used for index settings
Only the following devices can be used for index settings.
Device
ZR
D
W
• Usage range of index registers
The following table lists the usage range of index registers when setting indexes in 32-bit range.
Since the specified index register (Zn) and next index register (Zn+1) are used for index setting in 32-bit range, make sure not
to overlap index registers being used.
Setting value Index register
Z0 Z0, Z1
Z1 Z1, Z2
Z2 Z2, Z3
Z3 Z3, Z4
Z4 Z4, Z5
Z5 Z5, Z6
Z6 Z6, Z7
Z7 Z7, Z8
Z8 Z8, Z9
Z9 Z9, Z10
• The following figure shows the examples of index setting and their actual processing devices. (With the setting of Z0 (32
bits) = 100000 and Z2 (32 bits) = -20)
Ladder example
X0
DMOV
EN
K100000
s
DMOV
EN
K-20
s
X1
MOV
EN
ZR1000Z0
s
Description
Serial number access file register
Extended data register
Extended link register
ENO
Z0
d
ENO
Z2
d
ENO
D13000Z2
d
Setting value Index register
Z10 Z10, Z11
Z11 Z11, Z12
Z12 Z12, Z13
Z13 Z13, Z14
Z14 Z14, Z15
Z15 Z15, Z16
Z16 Z16, Z17
Z17 Z17, Z18
Z18 Z18, Z19
Z19 Not applicable
Actual processing device
X1
MOV
EN ENO
ZR101000 s d
Description
ZR1000Z0 ZR(1000+100000)
D13000Z2 D(30-20) D12980
4 PROGRAM CONFIGURATION
D12980
ZR101000
4.6 Index Setting
4
61