HEIDENHAIN PROFIBUS-DP (DPV0) - Manual (Page 7)

General information
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1.3 PROFIBUS technology
PROFIBUS is a powerful and versatile 2-wire non-proprietary open
field bus standard defined by several international standards such
as EN 50170, IEC 61158 together with different device profiles.
There are 3 different PROFIBUS versions available today, DP, FMS
and PA. HEIDENHAIN products support the Decentralized
Peripherals (DP) version. In addition to manufacturer-specific
functions, the HEIDENHAIN devices described in this manual
supports class 1 and 2 according to the encoder profile 3.062. The
encoder device profile describing encoder functionality and
additional information about PROFIBUS can be ordered from
PROFIBUS User Organization, PNO.
PROFIBUS User Organization
Haid-und-Neu Straße 7
D 76131 Karlsruhe, Germany
Tel: +49 721 96 58 590
Fax: + 49 721 96 58 589
Web: www.profibus.com
1.3.1 PROFIBUS DP functionality levels
The main functions of the different levels are as follows:
DPV0: Supports the basic functionality for the PROFIBUS
protocol. In principal this means the cyclical I/O communication
and diagnostics. This manual only covers DPV0 functionality.
DPV1: The most important benefits with DPV1 are the expanded
functions for the acyclical data communication and alarm
handling. This is a precondition for parameterization and calibration
of field devices over the bus in runtime. HEIDENHAIN have a
separate manual for DPV1/DPV2 devices.
DPV2: In addition to the functionality above, DPV2 includes
expansions that are required for time critical applications such as
motion control. This means functions such as slave-to-slave
communications and isochronous data exchange (time
synchronization). HEIDENHAIN have a separate manual for
DPV1/DPV2 devices.