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Overview of DeviceNet Section 1-1
1-1 Overview of DeviceNet
DeviceNet is a multi-bit, multi-vendor network that combines controls and data
on a machine/line-control level and that conforms to the DeviceNet open field
network specifications. DeviceNet has the following features.
1-1-1 DeviceNet Features
Multi-vendor Network The DeviceNet conforms to the DeviceNet open field network specification,
which means that devices (Masters and Slaves) produced by other manufac-
turers can also be connected to the Network. A wide range of field-level appli-
cations can thus be supported by combining valve devices, sensors, and
other devices.
Simultaneous Remote I/O
and Message Services
Remote I/O communications to constantly exchange I/O data between the
PLC and Slaves can be executed simultaneously with message communica-
tions, to send/receive Master Unit data as required by the application. A
DeviceNet Network can thus be installed to flexibly handle applications that
require both bit data and message data. Message communications can be
achieved either by using OMRON’s FINS commands or by using explicit
DeviceNet messages.
OMRON Master Unit
Master from other company
DeviceNet Network
OMRON Slaves
Slave from
other company
OMRON
Configurator
OMRON Master Unit
OMRON Master Unit
Message communications
DeviceNet Network
Slaves
Remote I/O communications
OMRON
Configurator