Overview; Data Exchange Area Overview - Omron SYSMAC CS1G Operation Manual

Overview

7-1 Overview
1,2,3...
7-1-1

Data Exchange Area Overview

CPU Unit
Ladder program
Allocated PC
Area words
Allocated DM
Area words
Custom Bit
Area words
Custom Data
Area words
Area Brev-
ity
Allocated PC AREA n
words (25 words)
Allocated DM Area m
words (100 words)
Custom Bit Area x
Custom Data Area d
340
CPU Unit can control MC Unit with the following three different methods of
data I/O.
1. Data exchange with allocated PC area words.
2. Data exchange with allocated DM area words.
3. Data exchange with allocated Custom area words .
During I/O Refresh
Control
Status
When the power is ON or re-starting
Area range setting
The following table shows the allocated PC interface area to be refreshed
cyclically.
The number of motion tasks automatically sets the actual number of trans-
ferred words. In addition, [the area range setting] in the allocated DM area and
[the physical axis setting] in axis allocation parameters determine the number
of Custom area words.
Direction Usage
Output Control Bit
Input Status Bit
Output Area range setting (Ini-
tial setting)
Output Control Data
Input Status Data
Output Control Bit
Input Status Bit
Output Control Data
Input Status Data
MC Unit
Motion program
Startup, Stop
Command analysis
General input
Status
General output
Variable
Set the Custom
area range to use
Remark
words min.
Unit and task control 5
Unit and task status 6
Only first time 20
Task control 4
Unit and task status 8
Axis control 0
Axis status 0
Axis control 0
Axis status 0
Section 7-1
Com-
mand
No. of No. of
words max.
12
13
20
18
36
32
32
32
96