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324 PROFINET IO – Communication protocol
PROFINET IO uses three different communication channels to
exchange data:
•
The standard UDP/IP and TCP/IP channel is used for
parameterization and configuration of devices and for acyclic
operations.
•
The real time (RT) channel is used for cyclic data transfer and
alarms.
•
The isochronous real time (IRT) channel is used, for example,
in motion control applications (not implemented in FENA).
PROFINET IO devices are structured in slots and sub-slots, which
can contain modules and sub-modules correspondingly. A device
can have almost any number of slots and sub-slots, and they can
be virtual or real. Device-specific data is represented in slot 0;
module-specific and sub-module-specific data in subsequent slots
and sub-slots.
One of the benefits of PROFINET IO is the diagnostics and alarm
mechanism. Every module and sub-module provide alarm data to
the I/O controller using the cyclic channel. Diagnostic data can be
read non-cyclically from the device by using record data.
The properties and services of a PROFINET IO device are
described in a GSD file written in GSDML (General Station
Description Markup Language). The GSD file describes the
device-specific modules and the method of assigning modules and
sub-modules to predefined slots and sub-slots. For more
information,
see section
Downloading the GSD file
on page
289
.
Summary of Contents for FENA-01
Page 4: ......
Page 20: ...20 Safety instructions ...
Page 32: ...32 Introduction to the manual ...
Page 38: ...38 Overview of the Ethernet network and the FENA 01 11 21 module ...
Page 42: ...42 Mechanical installation ...
Page 46: ...46 Electrical installation ...
Page 48: ......
Page 94: ...94 Modbus TCP Communication profiles ...
Page 106: ...106 Modbus TCP Communication protocol ...
Page 112: ...112 Modbus TCP Diagnostics ...
Page 114: ......
Page 154: ...154 EtherNet IP Start up 3 In the Select Module window select ETHERNET MODULE ...
Page 180: ...180 EtherNet IP Communication profiles ...
Page 246: ......
Page 304: ...304 PROFINET IO Start up ...
Page 374: ...374 AppendixA PROFIdriveparametersandI MrecordsofPROFINETIO ...