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VIPA System SLIO
IRT Communication
Properties of PROFINET
PROFINET devices
AR
API
GSDML file
HB300 | CPU | 013-CCF0R00 | en | 19-30
n
IRT means Isochronous Real-Time.
n
With the IRT communication the bus cycle begins clock-exactly i.e. with a maximum
permissible tolerance and is again synchronized. Thereby the time-controlled and
synchronous transfer of data is guaranteed.
n
Here sync telegrams of a sync master in the network serve for.
PROFINET of IEC 61158 has the following properties:
n
Full-duplex transfer with 100MBit/s via copper respectively fibre optics.
n
Switched Ethernet
n
Auto negotiation (negotiates the transfer parameters)
n
Auto crossover (transmission and receipt lines are crossed automatically if neces-
sary)
n
Wireless communication via WLAN
n
UDP/IP is used as overlaid protocol. UDP means User Datagram Protocol and con-
tains the unprotected connectionless broadcast communication within IP.
Like PROFIBUS DP also with PROFINET IO the following devices are classified
according to their tasks:
n
IO controller
–
The IO controller is equivalent to the master of PROFIBUS.
–
This is the PLC with PROFINET connection, in which the PLC program runs.
n
IO device
–
The IO device is a distributed I/O field device, which is connected to PROFINET.
–
The IO device is equal to the slave of PROFIBUS.
n
IO supervisor
–
The IO supervisor is an engineering station as e.g. programming unit, PC or HMI
interface for commissioning and diagnostics.
AR (Application Relation) corresponds to a connection to an IO controller or IO super-
visor.
n
API means Application Process Identifier and defines besides Slot and Subslot a fur-
ther addressing level.
n
With this additional addressing mode with using of different applications, the overlap-
ping of data areas can be prevented.
n
The following APIs are currently supported by the PROFINET IO devices from VIPA:
–
DEFAULT_API (0x00000000 )
–
DRIVE_API (0x00003A00)
–
ENCODER_API (0x00003D00)
–
FIELDBUS_INTEGRATION_API (0x00004600)
–
PROFINET_IO_LINK_API (0x00004E01)
–
RFID_READER_API (0x00005B00)
–
BARCODE_READER_API (0x00005B10)
–
INTELLIGENT_PUMP_API (0x00005D00)
–
PROCESS_AUTOMATION_API (0x00009700)
n
To configure a device I/O connection in your own configuration tool, you've got all the
information about your PROFINET components in form of a GSDML file. This file may
be found for System SLIO in the download area of www.vipa.com at 'Config files
è PROFINET'.
n
Please install the GSDML file in your configuration tool.
Deployment PG/OP communication - PROFINET
Basics PROFINET
231
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