Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 549

• The following shows the areas of (d) and later to be used.
(d)+0
(1)
+1
Z0
+2
Z1
+24 Z23
+25 Z0
+26 Z1
(1): Number of times of batch-storage
(2): 1st nesting (24 words for one nesting)
(3): 2nd nesting
Precautions
• When a nesting structure is not adopted, clear (d) before executing the ZPUSH(P) instructions.
• When a nesting structure is adopted, clear (d) before executing the first ZPUSH(P) instructions.
• When the ZPOP(P) instructions are used to return the data of index registers, use the ZPOP(P) instructions corresponding
to the ZPUSH(P) instructions that were used for saving the data.
ZPUSH(P) (One setting data)  ZPOP(P) (One setting data)
ZPUSH(P) (Two setting data)  ZPOP(P) (Two setting data)
• Secure the areas so that the save destination specified by (d) do not exceed the device range.
Operation error
Error code Description
(SD0/SD8067)
2820H The range of points used in (d) or later exceeds the range of the target device/label area.
3405H (d) is negative.
(2)
(3)
8 APPLICATION INSTRUCTION
8.11 Index Register Operation Instruction
8
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