Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 27

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Publication 1760-UM003A-EN-P - September 2005
DeviceNet Functions 4-3
Message Router Object
The Message Router Object (Class ID 02
hex
) provides access to
all classes and instances in the device by means of explicit
messages.
Connection Objects
These objects define messages exchanged via DeviceNet:
DeviceNet Object
All devices must support the DeviceNet object (Class ID: 03
hex
).
It defines the physical interconnection of a device to the
DeviceNet network, meaning it also contains the device address
(MAC ID) and the currently set transmission speed, for example.
Detailed information page 4-6.
Connection Object
The Connection Object (Class ID: 05
hex
) is supported by all
DeviceNet devices in at least one instance. It defines the access
to data via I/O messages or explicit messages, the path and
length of producer/consumer data, the CAN connection
identifier, the watchdog and the error response.
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