Mitsubishi Electric L02SCPU User's Manual And Reference page 335

(2) Precautions
(a) Specifying the extended data register (D) and extended link register (W)
Since the file register (ZR) area is used, the values of the following items will be the same as those for the file
register (ZR).
• Number of program steps
• Instruction processing time
• Link refresh time with the CC-Link IE Field Network master/local module
• Link refresh time with CC-Link IE Field Network Basic
• Auto refresh time with CC-Link
• Processing time of auto refresh with intelligent function modules
(b) Changing the file register size
The file register size cannot be changed while the CPU module is in the RUN status.
(c) Refresh range
Set the refresh ranges for the following auto refresh properly so that each refresh range does not cross over
the boundary between the internal user device and the extended data register (D) or extended link register (W).
• Link refresh with CC-Link IE Field Network
• Link refresh with CC-Link IE Field Network Basic
• Auto refresh with CC-Link
• Refresh with intelligent function modules
(d) Specifying in a program
Set the following properly so that each specification does not cross over the boundary between the internal
user device and the extended data register (D) or extended link register (W).
• Index modification
• Indirect specification
• Specification for instructions that use block data
*1 Block data means the following:
 Data used in instructions, such as FMOV, BMOV, and BK+, which treat more than one word for operation
 Control data, composed of two or more words, which are specified in instructions, such as SP.FWRITE and SP.FREAD.
 Data in a 32-bit or greater format (binary 32 bits, real number, indirect address of a device)
For details on the index modification and indirect specification with the extended data register (D) and extended
link register (W), refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
*1
CHAPTER 5 DEVICES
5
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