Omron DRT2 Series Operation Manual page 46

DeviceNet Remote I/O Communications
Allocating Real I/O Data
and Generic Status Flags
Individually
Analog Slaves
1,2,3...
Allocating Fixed I/O Data
Patterns
Allocating User-defined
I/O Data
Example 2: Using 16 outputs.
Address header
Address header
Example 3: Using 16 inputs and 8 inputs (Expansion Unit).
Address header
Address header + 1
Example 4: Using 16 outputs and 8 inputs (Expansion Unit).
Address header
Address header
Instead of allocating real I/O and Generic Status Flags together, they can be
allocated individually. This is only possible, however, if the Master Unit is a
CS/CJ-series DeviceNet Unit and the Configurator is used.
15
I/O Area
I/O Area
:
Status Area
Status Area
Data that is allocated for remote I/O communications can be selected using
any of the following methods.
1. Allocating only analog values (default I/O data)
2. Allocating a fixed I/O data pattern
3. Allocating user-defined I/O data
With methods 2 and 3, the Configurator is used to specify the I/O data that is
to be allocated. An outline of the methods used is given below.
There are eleven fixed I/O data patterns. The Configurator is used to select
the desired I/O data pattern from the pull-down menu for the Slave's default
connection path in the Edit Device Parameters Window.
Using the Configurator, the desired combination of I/O data can be allocated
for the Master Unit connection. The desired connection is selected from the
Master's Edit Device Parameters Window. Up to two of the eleven I/O data
patterns can be selected for the connection paths of the connection.
Note If analog data is allocated to a COS connection, a frame will be sent to the
host each analog conversion cycle. This will cause frames to be sent fre-
OUT Area
15
Allocated 16 outputs.
IN Area
7
Generic Status Flags
IN Area
15
Allocated 16 inputs.
Generic Status Flags Allocated 8 inputs.
OUT Area
15
Allocated 16 outputs.
IN Area
15 8 7
Generic Status Flags Allocated 8 inputs.
0
Node address 00
Node address 01
Node address 00
Node address 01
Section 3-2
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