Mitsubishi Electric MELSEC-Q/L Programming Manual page 26

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 Indicates the type of processing that is performed by individual instructions.
(D)+(S)
(D)
Indicates 16 bits.
 Indicates execution conditions for individual instructions.
Execution condition
Recorded code
For execution conditions, refer to Page 117 Conditions for Execution of Instructions.
 Indicates the basic number of steps for individual instructions.
See Page 118 Counting Step Number for a description of the number of steps.
 The ● mark indicates instructions for which subset processing is possible.
See Page 108 Reducing Instruction Processing Time for details on subset processing.
 Indicates the page numbers where the individual instructions are explained.
2 INSTRUCTION TABLES
24
2.2 How to Read Instruction Tables
Non-conditional
Executed at ON
execution
No symbol recorded
(D+1, D) +(S+1, S)
(D +1,D)
16 bits
16 bits
Indicates 32 bits.
D+1
Upper 16 bits
Lower 16 bits
Executed at the
Executed at OFF
rising edge
D
Executed at the
falling edge

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