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CS-series Instruction Execution Times and Number of Steps
Section 4-1
4-1
CS-series Instruction Execution Times and Number of
Steps
The following table lists the execution times for all instructions that are avail-
able for CS-series PLCs.
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
(CS1H-CPU6
@
H, CS1H-CPU6
@
, CS1G-CPU4
@
H, CS1G-CPU4
@
) and the
conditions when the instruction is executed. The top line for each instruction in
the following table shows the minimum time required to process the instruc-
tion and the necessary execution conditions, and the bottom line shows the
maximum time and execution conditions required to process the instruction.
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 of the CS-series instructions varies from 1 to 7 steps, depending upon
the instruction and the operands used with it. The number of steps in a pro-
gram is not the same as the number of instructions.
Note
1.
Program capacity for CS-series PLCs is measured in steps, whereas pro-
gram capacity for previous OMRON PLCs, such as the C-series and CV-
series PLCs, was measured in words. Basically speaking, 1 step is equiv-
alent to 1 word. The amount of memory required for each instruction, how-
ever, is different for some of the CS-series instructions, and inaccuracies
will occur if the capacity of a user program for another PLC is converted for
a CS-series PLC based on the assumption that 1 word is 1 step. Refer to
the information at the end of 4-1 CS-series Instruction Execution Times
and Number of Steps for guidelines on converting program capacities from
previous OMRON PLCs.
Most instructions are supported in differentiated form (indicated with
↑
,
↓
,
@, and %). Specifying differentiation will increase the execution times by
the following amounts.
2.
Use the following times as guidelines when instructions are not executed.
Symbol
CS1-H CPU Units
CS1 CPU Units
CPU6
@
H
CPU4
@
H
CPU6
@
CPU4
@
↑
or
↓
+0.24
+0.32
+0.41
+0.45
@ or %
+0.24
+0.32
+0.29
+0.33
CS1-H CPU Units
CS1 CPU Units
CPU6
@
H
CPU4
@
H
CPU6
@
CPU4
@
Approx. 0.1
Approx. 0.2
Approx. 0.1 to 0.3
Approx. 0.2 to 0.4
Содержание SYSMAC CS Series
Страница 2: ......
Страница 4: ...iv ...
Страница 30: ...xxx ...
Страница 186: ...146 List of Instructions by Function Code Section 2 4 ...
Страница 194: ...154 3 35 4 MOVE BIT MOVBC 568 1273 3 35 5 BIT COUNTER BCNTC 621 1275 3 35 6 GET VARIABLE ID GETID 286 1277 ...
Страница 1320: ...1280 Model Conversion Instructions Unit Ver 3 0 or Later Section 3 35 ...
Страница 1390: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...
Страница 1391: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits ...
Страница 1392: ...1352 ASCII Code Table Appendix A ...
Страница 1404: ...1364 Revision History ...