Omron CJ - INSTRUCTIONS User Manual

1197
CS/CJ/NSJ Series Instructions Reference Manual (W474)
4. Instruction Execution Times and Number of Steps
4-2 CJ1 CPU Unit Instruction Execution Times and Number of Steps
4
4-2-35 Function Block Instance Execution Time (CPU Units with Unit Version 3.0 or later)
4-2-35 Function Block Instance Execution Time (CPU Units with Unit
Version 3.0 or later)
Use the following equation to calculate the effect of instance execution on the
cycle time when function block definitions have been created and the
instances copied into the user program using CS/CJ-series CPU Units with
unit version 3.0 or later.
The following table shows the length of time for A, B, and C.
Example: CS1H-CPU63H
Input variables with a 1-word data type (INT): 3
Output variables with a 1-word data type (INT): 2
Total instruction processing time in function block definition section: 10 µs
Execution time for 1 instance = 6.8 µs + (3 + 2) × 0.3 µs + 10 µs = 18.3 µs
Note The execution time is increased according to the number of multiple
instances when the same function block definition has been copied
to multiple locations.
Note Guidelines on Converting Program Capacities from Previous OMRON PLCs
Guidelines are provided in the following table for converting the program
capacity (unit: words) of previous OMRON PLCs (SYSMAC C200HX/HG/HE,
CVM1, or CV-series PLCs) to the program capacity (unit: steps) of the CS-
series PLCs.
Effect of Instance Execution on Cycle Time
= Startup time (A)
+ I/O parameter transfer processing time (B)
+ Execution time of instructions in function block definition (C)
Operation CPU Unit model
CJ1H-
CPU6@H-R
CS1H-
CPU6@H
CJ1H-
CPU6@H
CS1G-
CPU4@H
CJ1G-
CPU4@H
CJ1M-
CPU@@
A Startup time Startup time not including I/
O parameter transfer
3.3 µs6.8 µs8.8 µs 15.0 µs
B I/O parameter transfer pro-
cessing time
The data type is indicated in
parentheses.
1-bit (BOOL) input symbol or
output symbol
0.24 µs0.4 µs0.7 µs1.0 µs
1-word (INT, UINT, WORD)
input symbol or output sym-
bol
0.19 µs0.3 µs0.6 µs0.8 µs
2-word (DINT, UDINT,
DWORD, REAL) input sym-
bol or output symbol
0.19 µs0.5 µs0.8 µs1.1 µs
4-word (LINT, ULINT,
LWORD, LREAL) input sym-
bol or output symbol
0.38 µs1.0 µs1.6 µs2.2 µs
I/O symbols 0.114 µs0.4 µs0.5 µs1.2 µs
C Function block definition
instruction execution time
Total instruction processing time (same as standard user program)

Omron CJ - INSTRUCTIONS Specifications

General

Brand	Omron
Model	CJ - INSTRUCTIONS
Category	Controller
Language	English