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VIPA System MICRO
7
Deployment PG/OP communication - PROFINET
7.1 Basics PROFINET
General
PROFINET IO
PROFINET CBA
TCP/IP communication
RT Communication
HB400 | CPU | M13-CCF0000 | en | 18-50
–
With firmware version V2.4, there is a PROFINET IO controller avail-
able via the Ethernet PG/OP channel.
–
As soon as you use the PROFINET functionality via the Ethernet
PG/OP channel, this affects the performance and response time of
your system and due to the system the cycle time of the OB1 is
extended by 2ms.
n
PROFINET is an open Industrial Ethernet Standard from PROFIBUS & PROFINET
International (PI) for automation.
n
PROFINET is standardized in the IEC 61158.
n
PROFINET uses TCP/IP and IT standards and supplements the PROFIBUS tech-
nology for applications, where fast data communication with industrial IT functions is
demanded.
There are 2 PROFINET function classes:
n
PROFINET IO
n
PROFINET CBA
These may be realized in 3 performance steps:
n
TCP/IP communication
n
RT communication
n
IRT communication
n
With PROFINET IO an I/O data sight to the distributed periphery is described.
n
PROFINET IO describes the whole data transfer between IO controller and IO device.
PROFINET is configured like PROFIBUS.
n
n
PROFINET IO always contains the real time concept.
n
Contrary to the master-slave procedure of PROFIBUS, PROFINET uses the provider-
consumer model. This supports the communication relations (AR = Application Rela-
tion) between equal participants in the Ethernet. Here the provider sends its data
without a request of the communication partner.
n
Apart from the user data exchange also functions for parametrization and diagnostics
are supported.
n
PROFINET CBA means Component Based Automation.
n
This component model describes the communication between autonomously working
stations.
n
It makes a simple modularization of complex plants possible, by distributed intelli-
gence by means of graphic configuration for communication of intelligent modules.
This is the open communication via Ethernet TCP/IP without any demand on real-time.
n
RT means Real-Time.
n
The RT communication represents the basics for data transfer at PROFINET IO.
Here RT data are handled with higher priority.
n
Deployment PG/OP communication - PROFINET
Basics PROFINET
179
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