
7
Operating characteristics with the PROFINET
PROFINET fieldbus interface
Manual – MOVI-C
®
CONTROLLER progressive UHX65A-M
22
7
Operating characteristics with the PROFINET
The controller is a PROFINET IO controller.
7.1
PROFINET fieldbus interface
The supported features of the PROFINET fieldbus interface can be found in the "Tech-
nical data" chapter in the operating instructions of the respective controller.
The device is connected to the other network nodes using a category 5, class D twis-
ted-pair cable in accordance with IEC 11801, edition 2.0.
INFORMATION
According to IEEE 802.3, 200 edition, the maximum cable length for
10 MBaud/100 MBaud Ethernet (10BaseT/100BaseT) between 2 network nodes is
100 m.
7.1.1
The integrated Ethernet switch
The controller is equipped with an integrated 2‑port Ethernet switch for connecting the
fieldbus technology. The following network topologies are supported:
•
Tree topology
•
Star topology
•
Line topology
•
Ring topology
INFORMATION
Note that an IEC program with a suitable fieldbus station must be loaded on the
MOVI-C
®
CONTROLLER progressive UHX65 to support the integrated Ethernet
switch.
7.1.2
Switch latency time
The number of industrial Ethernet switches connected in line impacts the telegram
runtime. If a telegram passes through the bus stations, the telegram runtime is
delayed by the latency time of the Ethernet switch.
The integrated switch operates using the cut-through method. The latency time is
about 5.5 µs.
7.1.3
Auto-crossing
The two ports leading out of the Ethernet switch have auto-crossing functionality. You
can use both patch and crossover cables to connect to the next Ethernet node.
7.1.4
Auto-negotiation
The baud rate and duplex mode are negotiated by both Ethernet nodes when estab-
lishing the connection. For this purpose, both Ethernet ports of the Ethernet connec-
tion support an auto-negotiation functionality and work with a baud rate of either
100 Mbit or 10 Mbit in full duplex or half duplex mode.
26881144/EN – 02/2022