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(3) Means of Inputting/Outputting Data
The DN211 supports "polling instruction/response" and "bit strobe instruction/response," both of
which are specified in the DeviceNet specification as the means of inputting/outputting data
to/from slave devices. The details of "polling instruction/response" and " bit strobe
instruction/response" are explained in "1.4 The Basic Functions."
(4) Examples of the System Configuration
This section describes a typical system configuration using the DN211, which is mounted on the
I/O slot of the T2/T2E/T2N. The DN211 allows the T2/T2E/T2N to exchange data with slave
devices on the DeviceNet.
In the following example, the DN211 is connected with slave devices, such as input/output devices,
sensor, and drive unit, which conforms with the DeviceNet specification. Moreover, a Toshiba's
original control LAN (TOSLINE-S20) is used to connect the T2/T2E/T2N with a higher-rank
controller.
A number of wiring combinations meeting the installation environment are available because the T
branch topology and the multi-drop topology are combinable when wiring a DeviceNet.
D
N
2
1
1
D
N
2
1
1
T
2
N
S
2
0
T
2
E
Drive unitDrive unit
Sensor
Sensor
Sensor
Input/Output device
Input/Output
device
Input/Output
device
Input/Output
device
DeviceNet
DeviceNet
TOSLINE S20
Ethernet
High-rank computer
T2N: PROSEC
−
T2N
T2E: PROSEC
−
T2E
S20: TOSLINE
−
S20
Figure 1.2 Example of the System Configuration