7 APPLICATION INSTRUCTIONS
7.6 Structure Creation Instructions
497
7
• If two offsets for two identical types of device have been set in the offset designation area, the last value set will be valid.
• The IXDEV and IXSET instructions should be treated as a pair.
• Any value from 0 to 32767 is valid for ZR. (The offset value will be the remainder of the quotient of the designated device
number divided by 32768.)
• 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.
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
• 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.
*4 Refer to Page 493 Index modification of entire ladder 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.
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
C
X
Y
M
L
B
V
D
W
4
0
T
P
Index modification
table
Index modification ladder
*4
Step
Instruction
Device
[Ladder Mode] [List Mode]
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