Mitsubishi Electric MELSEC-Q/L - Index Modification of Entire Ladder

7 APPLICATION INSTRUCTIONS
7.6 Structure Creation Instructions
493
7
Index modification of entire ladder
IX, IXEND
Processing details
• Performs index modification on all devices in the ladder up to the IXEND instruction after the IX instruction, using the index
modification value specified in the index modification table. Refer to Page 496 Designation of modification values in index
modification of entire ladders for how to configure an index modification table. The configuration of the index modification
table and the corresponding index register numbers are as shown below:
*1 When using a basic model QCPU, index registers with numbers from Z10 onward cannot be used.
(S): Head number of the devices where index modification data is stored (BIN 16 bits)
Setting
data
Internal device R, ZR J\ U\G Zn Constant Others
Bit Word Bit Word
(S)  
Universal LCPU
Basic
Process
High
performance
Redundant
I XEND
IX
IX
IXEND
S
Ladder where index modification is performed
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 1
+ 8
+ 9
+ 10
+ 11
Z8
Z9
Z10
Z11
Z12
Z13
Z14
Z15
+ 12
+ 13
+ 14
+ 15
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Z0
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Device name
Index register
number
*1
Modification value of timer
(T)
Modification value of counter
(C)
Modification value of input
(X)
Modification value of output
(Y)
Modification value of
internal relay (M)
Modification value of
latch relay (L)
Modification value of
link relay (B)
Modification value of
edge relay (V)
Modification value of
data register (D)
Modification value of
link register (W)
Modification value of
file register (R)
Modification value of
buffer register I/O No. (U)
Modification value of
buffer register (G)
Modification value of
link direct device
network No. (J)
Modification value of
file register (ZR)
Modification value of pointer
(P)
Device name
Index register
number