TR-Electronic 65 Serie Montageanleitung Seite 126

Interface information's
3.1.4 PROFINET IO – Services
Cyclic data exchange of process data
– RT communication within a network, no use of UDP/IP
– RT communication over UDP/IP (RT over UDP),
– IRT communication for deterministic and clock-synchronized data
– Multicast Communication Relation,
Acyclic data exchange of record data (read- / write services)
– Parameterization of the measuring system during system boot, writing of
– Reading of diagnostic information
– Reading of identification information according to the
– Reading of I/O data
3.1.5 PROFINET IO – Protocols
– DCP, Discovery and Control Program:
– LLDP, Link Layer Discovery Protocol: For topology identification
– SNMP, Simple Network Management Protocol: For network diagnostics
and others
3.1.6 Distributed clocks
When
synchronization of the subscribers in the network is necessary. For example in the
case of applications in which several servo axes must execute simultaneously
coordinated sequences.
For this purpose the "Distributed clocks" function in accordance with standard
IEEE 1588 is available in PROFINET IRT-Mode.
The master clock can exactly determine the runtime offset to the individual slave
clocks, and also vice-versa. The distributed clocks can be readjusted across the
network on the basis of this determined value. The jitter of this time base is below 1µs.
Distributed clocks can also be used efficiently for position detection, as they provide
exact information at a local time point of the data acquisition. Through the system, the
accuracy of a speed calculation no longer depends on the jitter of the communication
system.
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Page 82 of 131
not supported at present
transmission
with RT- and IRT-communication based on the Provider/Consumer model,
not supported at present
preset value
„Identification and Maintenance (I&M) Functions"
Assignment of IP addresses and device names over Ethernet
spatially distributed
TR-ECE-BA-DGB-0063 v15
processes require simultaneous actions, exact
Printed in the Federal Republic of Germany
04/25/2022