Omron CJ - 09-2009 Operation Manual page 401

Creating I/O Tables
Source CPU Unit
CPU Unit's unit Pre-Ver. 2.0
version used to
create files for
automatic transfer
at startup
Unit Ver. 2.0
Unit Ver. 3.0 or
later
2. Parameter file transferred by user operation
3. Simple backup/recovery operations
The I/O allocation status changes are described below.
1. I/O Allocation Status Changes due to Automatic Transfer at Startup
The I/O allocation status depends on the unit versions of the source and des-
tination CPU Units when using a single CJ-series CPU Unit to create parame-
ter files for automatic transfer at startup (AUTOEXEC.STD), save them in the
Memory Card, and then automatically transfer them to another CJ-series CPU
Unit at startup. The changes to I/O allocation status for different unit version
combinations is shown in the following table.
Original I/O
allocation status
Automatic alloca-
tion
User-specified
Automatic alloca-
tion
User-specified
Automatic alloca-
tion
User-specified
Note 1. When files for automatic transfer at startup (AUTOEXEC.STD) are created
and saved in a Memory Card using user-specified I/O allocations with a
pre-Ver. 2.0 CJ-series CPU Unit, the system will automatically switch to au-
tomatic I/O allocation at startup if the data is automatically transferred from
the Memory Card.
2. When files for automatic transfer at startup (AUTOEXEC.STD) are created
and saved in the Memory Card using a CJ-series CPU Unit with unit ver-
sion 2.0, the I/O allocation status will switch automatically to user-specified
I/O allocations if the data is automatically transferred from the Memory
Card to a CJ-series CPU Unit with unit version 3.0 or later.
Destination CPU Unit
Unit version of CPU Unit to which files for automatic
transfer at startup will be sent
Pre-Ver. 2.0 Unit Ver. 2.0
Switches to user- (Same) automatic
specified allocation
(Same) User- Switches to auto-
specified matic allocation
(See note 1.)
Switches to user- (Same) automatic
specified allocation
(Same) User-specified
Switches to user- (Same) Automatic
specified allocation
(Same) User-specified
Section 8-2
Unit Ver. 3.0 or
later
Switches to user-
specified
(Same) User-
specified
Switches to user
operation
(Same) Automatic
allocation
353