Learn Devices On Loops - Honeywell XLS80e Manual

Panel configuration
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Before configuring
your panel, ensure all
loop devices are
and each loop is
EN54-2: 13.7
Maximum of 512
Sensors and/or
MCPs per panel unless
ELIBs are used
EN54-2: 12.5.2
Maximum of 32 Sensors
and/or MCPs between
Honeywell, Issue 9
March 2007
installed
connected
isolators
XLS80e Fire Alarm Control Panels

3.6 Learn Devices on Loops

The panel scans the loops and detects what
devices are fitted. This can be done on an
unconfigured panel. Section 5.3 describes how
to start, run and end a configuration learn.
There are two learn methods:
a. Auto-Learn. Loop device decisions are made
without the need for user intervention. Refer
to Section 5.3.2.
b. Manual Learn. Prompts the user each time
a new or changed device is detected. Refer
to Section 5.3.3.
Limitations on the Number of Devices
The XLS80e Series Control Panel design allows
for the connection of up to 198 loop devices per
analogue loop; i.e. up to 99 sensors and 99
modules. The maximum number of devices per
panel is:
a. 1584, if the Enhanced Loop Interface Board
(ELIB) is used for loops 3 to 8.
b. 512, if the Loop Interface Board (LIB) is used
for loops 3 to 8.
To comply with EN54-2 in the event of a system
fault, a maximum of 512 sensors and/or MCPs
should be connected to the control panel across
those analogue loops that are not connected
to an ELIB. This number includes all
conventional zone detectors and/or MCPs
connected.
If the number of sensors and/or MCPs connected
to a loop exceeds 32, then isolators MUST be
used to segregate parts of the loop. This will
ensure that a short or open circuit will not cause
the loss of more than 32 sensors or MCPs. For
the XLS80e Series, do not place more than 25
loop devices between isolators (20 if FET
isolators are used).
There may be a further restriction, depending
on the types of sensor used, because of drive
limitations of the isolators. HONEYWELL
provide a PC-based tool to simplify loop loading
calculations. Contact the Technical Support
Department or your supplier for further
information.
14

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