Sequence Input Instructions - Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual

Instruction Execution Times and Number of Steps
Note
9-5-1

Sequence Input Instructions

Instruction Mnemonic
LOAD LD
!LD
LOAD NOT LD NOT
!LD NOT
AND AND
!AND
AND NOT AND NOT
!AND NOT
OR OR
!OR
OR NOT OR NOT
!OR NOT
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 instructions varies from 1 to 7 steps, depending upon the instruc-
tion and the operands used with it. The number of steps in a program is not
the same as the number of instructions.
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 9-5 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.
Symbol
or
@ or %
2. When the execution condition for an instruction is OFF, the execution time
is given in the following table.
CPU6@H/CPU6@S ( s)
Approx. 0.1
Code Length
(steps)
--- 1
--- 2
--- 1
--- 2
--- 1
--- 2
--- 1
--- 2
--- 1
--- 2
--- 1
--- 2
CS1D CPU Unit
CPU6@H/CPU6@S ( s)
+0.24
+0.24
CS1D CPU Unit
CPU4@S ( s)
Approx. 0.2
Execution time ( s)
CPU6@H CPU6@S
(Duplex (Single
CPU) CPU)
0.02 0.02
(See note +21.14
2.)
0.02 0.02
(See note +21.14
2.)
0.02 0.02
(See note +21.14
2.)
0.02 0.02
(See note +21.14
2.)
0.02 0.02
(See note +21.14
2.)
0.02 0.02
(See note +21.14
2.)
Section 9-5
CPU4@S ( s)
+0.32
+0.32
Conditions
CPU4@S
(Single
CPU)
0.04 ---
+21.16 ---
0.04 ---
+21.16 ---
0.04 ---
+21.16 ---
0.04 ---
+21.16 ---
0.04 ---
+21.16 ---
0.04 ---
+21.16 ---
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