SEW-Eurodrive DH 21B Series, Руководство пользователя, Страница: 28 / 92

6 Electrical installation
Terminal assignment and DIP switches
Manual – DHE/DHF/DHR21B (standard) and DHE/DHF/DHR41B (advanced)
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Assignment
No. Name Function
X26 1 CAN 1H System bus CAN 1 high
2 CAN 1L System bus CAN 1 low
3 DGND Reference potential for controller/CAN 1
4 Reserved –
5 Reserved –
6 DGND Reference potential for controller/CAN 1
7 DC 24 V Voltage supply controller
6.2.3 X30-1/X30-2: Ethernet 3/Ethernet 4 connection
Function
Connection to Ethernet network
INFORMATION
• According to IEC 802.3, the maximum cable length for 10/100 MBaud Ethernet
(10 BaseT/100 BaseT), e.g. between 2 network stations, is 100 m.
• SEW‑EURODRIVE recommends that you do not directly connect third-party end
devices to the DHR21B/41B option in order to minimize the load on the end
devices in EtherNet/IP networks caused by undesired multicast data traffic. Con-
nect devices from third-party manufacturers via a network component that sup-
ports the IGMP snooping functionality (e.g. managed switch). Managed switches
with IGMP snooping functionality are not required for PROFINET IO and Modbus/
TCP networks.
Connection type
To connect DHR21B/41B to the Ethernet network, connect Ethernet interface X30-1
or X30-2 (RJ45 plug connector) to the other network stations using a category 5,
class D twisted-pair cable in accordance with IEC 11801 edition 2.0. The integrated
switch assists you in implementing a line topology and provides auto-crossing func-
tions.
Assignment
No. Name Function
X30-1 Ethernet 3
Ethernet default assignment
X30-2 Ethernet 4
22900055/EN – 08/2016