3 Instruction Execution Times and Number of Steps
3-2
CP1E CPU Unit Instructions Reference Manual(W483)
3-1 CP1E CPU Unit Instruction Execution
Times and Number of Steps
The following table lists the execution times for all instructions that are supported by the CPU Units.
The total execution time of instructions within one whole user program is the process time for program
execution when calculating the cycle time (See note.).
Note User programs are allocated tasks that can be executed within cyclic tasks and interrupt tasks
that satisfy interrupt conditions.
Execution times for most instructions differ depending on the CPU Unit used and the conditions when
the instruction is executed.
The execution time can also vary when the execution condition is OFF.
The following table also lists the length of each instruction in the Length (steps) column. The number of
steps required in the user program area for each instructions depends on the instruction and the oper-
ands used with it.
The number of steps in a program is not the same as the number of instructions.
Note 1 Most instructions are supported in differentiated form (indicated with , ↓, @, and %).
Specifying differentiation will increase the execution times by the following amounts.
(unit:s)
2 Use the following time as a guideline when instructions are not executed.
Symbol
CP1E CPU Unit
CPU
or ↓ +4.0
@ or % +2.5
CP1E CPU Unit
CPU
1.4
↓
↓
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