Mitsubishi Electric L02SCPU User's Manual And Reference page 323

(3) Processing speed
The processing speed of the intelligent function module device is as follows:
• The processing speed of writing or reading using the intelligent function module device is slightly higher
compared with the case of using the FROM or TO instruction. (Example: "MOV U5\G11 D0")
• When reading from the buffer memory of an intelligent function module and another processing with one
instruction, totalize the processing speed of the FROM or TO instruction and the other instruction. (Example:
"+ U5\G11 D0 D10")
Instead of using the intelligent function module device in the program more than once to write or read buffer memory data,
use the FROM or TO instruction once in one place so that the processing speed increases.
For the buffer memory address and application, refer to the manual for the intelligent function module used. For
the FROM or TO instruction, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
CHAPTER 5 DEVICES
Writes data to a device
such as data register (D)
Writes data once in the program
5
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