Nortech Systems Adept RS-232/TERM User Manual

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.

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:

• 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) 

• 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:

Open DeviceNet Vendor Association, Inc.
PMB 499
20423 State Road 7 #F6
Boca Raton, FL 33498-6797
Phone: (1) 561 477-7966
Fax: (1) 561 218-9465 
e-mail: odva@powerinternet.com
Internet: 

1

These layers are based on the Open Systems Interconnect (OSI) model.