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3.3 Indexing
(e) Index modification using extended data register (D) and extended link register (W) by
32 bits (Universal model QCPU(except Q00UJCPU))
Like index modification using file register (ZR), index modification using extended data
register (D) and extended link register (W) by 32 bits can be performed by the following
two methods.
• Specifing the index registers’ range used for indexing with 32-bit.
• Specifing the 32-bit indexing using “ZZ” specification.
The 32-bit indexing with “ZZ” specification is available only for the following CPU
modules that the version of GX Developer is 8.68W or later.
• The first five digits of the serial No. for QnU(D)(H)CPU is “10042” or higher.
(except Q00UJCPU)
• QnUDE(H)CPU
(6) Cautions
(a) Performing indexing between the FOR and NEXT instructions
Pulses can be output between the FOR and NEXT instructions by use of the edge relay
(V). However, pulse output using the PLS/PLF/pulse ( P) instruction is not allowed.
[When edge relay is used] [When edge relay is not used]
(M0Z1 provides normal pulse output.) (M0Z1 does not provide normal pulse output.)
Remark
The ON/OFF data of X0Z1 is stored by the edge relay V0Z1.
For example, the ON/OFF data of X0 is stored by V0, and that of X1 by V1.
SM400
X0Z1
Z1
M0Z1
NEXT
K0MOV
K10FOR
V0Z1
Z1INC
SM400
SM400
X0Z1
Z1
NEXT
K0MOV
K10FOR
Z1INC
SM400
M0Z1PLS