417
IXDEV, IXSET
1
2
3
4
4
6
7
8
7.6 Structure creation instructions
7.6.13 IXDEV, IXSET
(9) The dummy contacts in the offset specifying part are valid for only LD and AND located within the range of the IXDEV-
IXSET instructions. The IXDEV-IXSET instructions will not be executed if other instructions are described.
Operation Error
(1) In the following case, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
Program Example
(1) The following program changes the modification values for input (X), output (Y), data register (D) and pointer (P).
When using a basic model QCPU, the devices R, U/G, J, ZR and P cannot be used.
[Ladder Mode] [List Mode]
*4: Refer to Page 413, Section 7.6.12 for index modification using the IX to IXEND instructions.
Error
code
Error details
Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
4231 The IXDEV and IXSET instructions are not used as a pair.
Example
IXDEV
INC D50
IXSET P3 D0
Valid dummy contacts
Non-execution processing (outputs OFF)
Non-execution processing (ignored)
D15
D0
0
5
3
0
0
0
0
8
0
0
0
Index modification
table
C
X
Y
M
L
B
V
D
W
4
0
T
P
Index modification ladder
*
Step
Instruction
Device
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