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Adept SmartController User’s Guide, Rev. H 115
Adept DeviceNet B
DeviceNet is a low-cost communications link that connects industrial devices to a
network and eliminates expensive hard-wiring. The direct connectivity provides
improved communication between devices as well as important device-level diagnostics
not easily available using hard-wired I/O interfaces.
B.1 DeviceNet Specifications
Adept Technology is a member of the Open DeviceNet Vendor Association (ODVA),
which is independently run and operated and not directly associated with any one
company. The ODVA controls DeviceNet technical specifications with help from Special
Interest Groups (SIGs). Each SIG develops device profiles for one line of product features
to ensure interoperability. These profiles become part of the technical specifications.
The DeviceNet Specification is divided into two volumes and defines the following
elements:
Volume 1
DeviceNet Communication Protocol and Application (Layer 7 - Application
Layer
1
)
Controller Area Network (CAN) and its use in DeviceNet (Layer 2 - Data
Link Layer)
DeviceNet Physical Layer and Media (Layer 1 - Physical Layer)
Volume 2
Device profiles to obtain interoperability and interchangeability among like
products
DeviceNet incorporates CAN, which defines the syntax or form of the data transmitted.
The DeviceNet application layer defines the semantics or meaning of the data transmitted.
For more information on the basics of a DeviceNet cable system, contact ODVA at:
ODVA Technology and Training Center
4220 Varsity Drive, Suite A
Ann Arbor, MI 48108-5006 USA
Phone Number: 1-734-975-8840
Fax Number: 1-734-922-0027
www.odva.org
1
These layers are based on the Open Systems Interconnect (OSI) model.
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