PROFIBUS USER MANUAL Leine & Linde AB
Part Id: 740590-01
18
Document Id: 740590 Ver. 01
Publication date: 2010-06-01
4 Profile overview
Encoder Profile for DPV0, version 1.1, Order no 3.062.
The operating functions in this profile are divided into two device classes named
Class 1 and Class 2. Class 1 encoders offer basic functions that all PROFIBUS-DP
encoders must support. An encoder of class 1 can optionally support selected
functions of class 2 but these functions must be implemented according to the
profile. To support early PROFIBUS-DP implementations the size of the protocol data
units (PDU) is limited to 16 bytes. Encoders of class 2 must support all functions of
class 1 as well as the additional functionality of class 2. In addition to the two classes,
parameters and diagnostic ranges are reserved for manufacturer-specific functions.
For further information regarding the encoder functionality refer to the device profile.
The profile and PROFIBUS technical information can be ordered at PNO in Karlsruhe,
Germany (
www.profibus.com
).
Picture 12 Overview encoder profile and related documents