Further Notes - Siemens SIMATIC NET SCALANCE XM-400 Operating Instructions Manual

6.2

Further notes

Further notes
Commissioning devices and replacement devices
If you use redundancy mechanisms (HRP/MRP ring redundancy and/or redundant coupling of
rings with standby), open the redundant path before you insert a new or replacement device
in an operational network. A bad configuration or attachment of the Ethernet cables to
incorrectly configured ports causes overload in the network and a breakdown in
communication.
A device may only be inserted in a network and connected in the following situations:
• With HRP/MRP:
• With standby link:
For further information, refer to the configuration manuals (Page 5).
In areas subject to the NEC or CEC:
Safety notice for connectors with LAN (Local Area Network) marking
A LAN or LAN segment, with all its associated interconnected equipment, shall be entirely
contained within a single low-voltage power distribution and within a single building. The LAN
is considered to be in an "environment A" according to IEEE802.3 or "environment 0" according
to IEC TR 62102, respectively. Never connect directly to TNV-circuits (Telephone Network) or
WAN (Wide Area Network).
Safety notice for connecting with a LAN ID (Local Area Network)
A LAN or LAN segment with all the interconnected devices should be contained completely in
a single low voltage power distribution in a building. The LAN is designed either for
"Environment A" according to IEEE802.3 or "Environment 0" according to IEC TR 62102.
Do not connect any electrical connectors directly to the telephone network (telephone network
voltage) or a WAN (Wide Area Network).
Extender for SCALANCE XM-400
Operating Instructions, 03/2021, C79000-G8976-C332-10
WARNING
– Ring redundancy must be activated
– The mode must be selected correctly.
– The ring ports of the device being inserted in the HRP/MRP ring must be configured as
ring ports.
– The standby connection must be activated.
– The "Standby Connection Name" must match the name of the partner device.
– The port must be configured as a standby port.
WARNING
WARNING
Connecting up
6.2 Further notes
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