PROFINET
Leuze electronic
DDLS 548i
46
7
PROFINET
The functionality of the DDLS 548i via the PROFINET interface is defined with input/output data that is de-
fined in the modules of the GSDML file.
NOTICE
Observe for the configuration of PROFINET devices!
Ä
Always
perform the basic configuration using the GSDML file (GSDML=Generic Station De-
scription Markup Language).
Ä
Download the appropriate GSDML file from the Internet (
www.leuze.com > Products >
Data transmission/control components > Data transmission > DDLS 500 > [Name of
the DDLS 548i] > Downloads tab > Software/drivers > GSDML file
).
Ä
In process operation, the input/output data of the respective, activated GSDML modules
(M1 … M3, M60) are exchanged with the control.
Ä
If you switch the DDLS 548i to the
Service
operating mode via the webConfig tool, the
DDLS 548i is disconnected from the PROFINET. The optical link (OLK) is deactivated. Thus,
no data transmission is possible in the
Service
operating mode.
Ä
Settings configured with the webConfig tool are overwritten by the PROFINET master with
the settings made via the GSDML file upon connection to PROFINET or after deactivation of
the
Service
operating mode.
7.1
Configuring the PROFINET interface
The DDLS 548i is designed as a PROFINET-RT device (Real Time; acc. to IEEE 802.3). It supports a
transmission rate of up to 100 Mbit/s (100 Base TX/FX), full duplex, as well as auto-negotiation and auto-
crossover.
• The functionality of the DDLS 548i is organized via modules. The modules are part of the Generic Sta-
tion Description Markup Language (GSDML) file.
• Each DDLS 548i has a unique MAC address (Media Access Control) that is specified on the name
plate. The MAC address (MAC-ID) is linked to an IP address during the course of configuration.
The MAC address can be found on the name plate and on an easily removable "Address Link La-
bel” (see chapter 9.2.2 "MAC address") that is also attached to the device.
• The Simatic Manager for creation of PROFINET networks links the IP address to a freely selectable de-
vice name which may only exist once in the network.
7.1.1
PROFINET ‑ communication profile
The PROFINET communication profile defines how participants serially transmit their data via the transmis-
sion medium. Data exchange with the devices occurs primarily cyclically. For configuration, operation, ob-
servation and alarm handling, acyclic communication services are, however, used as well.
Depending on the communication requirements, PROFINET offers suitable protocols and transfer methods:
• Real Time communication (RT) via prioritized Ethernet frames:
• Cyclical process data (I/O data stored in the I/O area of the control)
• Alarms
• Clock synchronization
• Neighborhood information
• Address assignment/address resolution via DCP
• TCP/UDP/IP communication via standard Ethernet TCP/UDP/IP frames:
• Establishing communication
• Acyclic data exchange, i.e., transfer of various types of information:
Parameters for the module configuration while communication is being established
Reading diagnostic information
Reading I/O data
Writing device data