Festo CTEU-DN, Description, Functions And Maintenance

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1. Introduction
1-6
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
1.2 General information on the fieldbus protocol DeviceNet
1.2.1 Central component of the fieldbus protocol
Participant features
A DeviceNet participant is configured based on product-spe-
cific data and characteristics, which the manufacturer
provides in the form of electronic datasheets (EDS). These
EDS files contain the product code, revision data and the
available address space (input/output size).
The configuration program of the DeviceNet Master manages
the EDS files of all fieldbus participants in a list or an EDS
library.
Special Device Configuration Files contain additional project
data over and above the content and scope of the EDS file.
Communication protocol
According to the layer model of the International Organisation
for Standardisation (Open Systems Interconnection Reference
Model - OSI), DeviceNet uses the principles of the Controller
Area Network (CAN) Protocol at security layer level (Data Link
Layer), as well as the Common Industrial Protocol (CIP) for the
upper communication level.
The DeviceNet protocol therefore represents a conversion
from CIP based on CAN principles.