Omron CS1W-MCH71 Operation Manual page 16

Functions Added in
Version Upgrade
Expanded Custom I/O
Area Allocations
The following table provides a comparison between the functions provided in
the upgrade to unit version 2.1 or later of CJ1W-MCH71 SYSMAC CJ-series
Motion Control Units from the previous unit version 2.0.
Reading Unit Versions
Previous version (Unit Ver. 2.0)
The MC Unit's unit version code could not
be read by accessing the Unit Manufac-
turing Information in CX-Programmer
Ver.4.0.
Expanded Allocations in Custom I/O Area
Previous version (Unit Ver. 2.0)
Only the I/O variable area determined in
advance could be allocated to the Cus-
tom I/O Area.
Overview
The CPU Unit can control MC Units with the following three different methods
of data I/O.
1. Data exchange with allocated bit area words.
2. Data exchange with allocated DM Area words.
3. Data exchange with allocated Custom Area words.
CPU Unit
Ladder program
Allocated Bit
Area words
Allocated DM
Area words
Custom Bit
Area words
Custom Data
Area words
The function for exchanging data in the Custom I/O Area has been enhanced
with MC Units with unit version 2.1, as shown in the following table.
For details on previous specifications, refer to SECTION 7 PC Interface Area.
The MC Unit's unit version code can be
read by accessing the Unit Manufacturing
Information in CX-Programmer Ver.4.0.
In addition to the I/O variable area, sys-
tem variables, global general variables,
position data, and task variables for user-
specified addresses can be allocated in
the Custom I/O Area.
I/O Refresh
Control
Status
When the power is
ON or restarting
Area range setting
Present version (Unit Ver. 2.1)
Present version (Unit Ver. 2.1)
MC Unit version 2.1 or higher
Motion program
Startup, Stop
Command analysis
General input
Status
General output
Variables
Set the Custom
Area range to use
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