
Commissioning and configuration
Leuze electronic
MA 248
i
71
TNT
35/7-2
4
V
12.4
Commissioning via the PROFINET-IO
General information on the PROFINET implementation of the MA 248
i
PROFINET-IO communication profile
The
communication profile
defines how participants serially transmit their data via the
transmission medium.
The
PROFINET-IO
communication profile is designed for efficient data exchange on the field
level. The data exchange with the devices is mainly
cyclical
. For the configuration, operation,
monitoring and alarm handling, however,
acyclic
communication services are also used.
Depending on the communication requirements, PROFINET-IO offers suitable protocols
and transfer methods:
•
R
eal
T
ime communication (RT) via prioritized Ethernet frames for
• Cyclical process data (I/O data stored in the I/O area of the control)
• Neighborhood information
• Address assignment/address resolution via DCP
• TCP/IP communication via standard Ethernet TCP/IP frames for
• Establishing communication and
• Acyclic data exchange, and also for the transfer of various information types such
as:
- Parameters for the configuration of the modules during the establishment of the
communication (write)
- I&M data (Identification & Maintenance functions) (read)
- Reading diagnostic information via RS 232
- Reading I/O data
- Writing device data
Conformance classes
PROFINET-IO devices are categorized into conformance classes to simplify the evaluation
and selection of the devices for the users. The MA 248
i
can use an existing Ethernet network
infrastructure and corresponds to Conformance Class B (CC-B). Thus, it supports the
following features:
• Cyclical RT communication
• Acyclic TCP/IP communication
• Alarms/diagnostics
• Automatic address assignment
• I&M functionality 0-4
• Neighborhood detection basic functionality
In the factory settings, which can be re-set if necessary through a restart in device
switch position F, the MA 248
i
supports neighborhood detection.
• In the PLC, the BUS IN connection is detected as Port1 and BUS OUT as Port2.
• FAST Ethernet 100 Base-TX
• Convenient device exchange without engineering tools
• SNMP support