Siemens FS20 - Guidelines for SAFEDLINK Networking

Planning the networking of the stations
G
uidelines
8
129 |
242
Building Technologies
008843_v_en_
--
Fire Safety
2015
-
12
-
15
8.16.1.2 Degraded mode with extended networking
In addition to the guidelines for ↑ SAFEDLINK networking, the following must be
noted for the degraded mode characteristics of extended networking:
If a
↑
'
Station
' is in '
De
graded mode
' and has a '
Degraded FIRE ALARM
', all
'Stations' on the same sub-net generate a 'Degraded FIRE ALARM'. The
'Stations' in other sub-nets which are networked via 'FCnet/LAN' do not generate
a 'Degraded FIRE ALARM'.
'RT' and 'External sounder'
● Because the 'RT' has the global 'Visibility', the 'Degraded FIRE ALARM' is
always activated by a 'RT'.
● An 'External sounder' has the ↑ 'Visibility' 'Station' as standard and is therefore
not activated by a 'Degraded FIRE ALARM' from another sub-net.
You can change the behavior of the 'External sounder' element by extending the
'Visibility' of the 'External sounder' element to include all 'Stations' on the other sub-
nets or by configuring the global 'Visibility'.
● An alarm signal can only be switched off within a ↑ SAFEDLINK sub-net in
'Degraded mode'. If, for example, a station is in sub-net 1, in 'Degraded mode'
and has an alarm, all the horns in sub-net 2 are also switched on. The horns
that are switched on in sub-net 2 can however no longer be deactivated by the
station in 'Degraded mode' (in sub-net 1).
● If horns are connected to the station in 'Degraded mode' in sub-net 1, they can
only be deactivated by a station in sub-net 1.
See also
2 Guidelines for SAFEDLINK networking [➙ 129]
8.16.2 Guidelines for SAFEDLINK networking
Observe the following guidelines for the ↑ SAFEDLINK networking:
● Lines for the ↑ system bus and for the DC power supply must be arranged
separately.
● Networking via Ethernet is not in compliance with EN 54.
● When using a repeater (SAFEDLINK) and interface module (DL485/13-xx-ST-
SBT), the earth fault monitoring of the network cabling is limited.
● The number of ↑ BACnet clients for ↑ management stations is limited to 2 per
SAFEDLINK network.
The following table shows the most important parameters of the networking types.
Parameters FCnet/SAFEDLINK FCnet/Ethernet (sub-net)
Max. length of line between the ↑ stations
1
1000 m 100 m
(without switch or router)
Max. number of stations 32 14 (incl. router station)
Max. number of stations that can be networked via
FCnet/SAFEDLINK, without BACnet configuration
(e.g., management station)
32 –
Max. number of stations that can be networked via
FCnet/SAFEDLINK, with BACnet configuration
(e.g., management station)
16 –
Max. distance length between the repeater and the
stations
1000 m in each case –