Communication
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Communication
Overview
This chapter describes the PROFIBUS messaging used in the
communication with the drive, and PROFIBUS slave device
configuration messages.
PROFIBUS DP
The FPBA-01 module supports the PROFIBUS DP (DP-V0)
protocol according to the IEC 61784 and EN 50170 standards.
PROFIBUS DP-V0/DP-V1 is a distributed I/O system which
enables the master to use a large number of peripheral modules
and field devices. The data transfer is mainly cyclic: the master
reads the input information from the slaves and sends the output
information back to the slaves.
The FPBA-01 module uses so-called PPOs (Parameter/Process
Data Objects) in cyclic communication and supports also standard
telegrams 1 and 2. See Figures 8 and 9 for the supported PPO
messages and standard telegrams respectively.
Service Access Points (SAPs)
The services of the PROFIBUS Data Link Layer (Layer 2) are
used by PROFIBUS DP through Service Access Points (SAPs).
Precisely defined functions are assigned to individual SAPs.
For further information on Service Access Points, refer to the
manual of the PROFIBUS master, PROFIDRIVE – The
PROFIBUS Profile for Adjustable Speed Drives V2.0 and V3.1, or
the EN 50170 and IEC 61784 standards.
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