Autolearn by Loop
On software v 3.0 (introduced August 07), Autolearn by loop has been introduced. This allows a
second loop to be learned without having to relearn Loop 1. (which, in early versions, only allows one
attempt)
If a second loop controller is installed, then the option to learn loops 3 & 4 individually is displayed.
Further enhancements now allow any loop to be autolearned as many times as required.
All devices on the newly learned loop will be placed into zone 1 and the Cause & Effect returned to a
Global Fire trigger. The devices on the existing loop will also revert to Global Fire trigger, however
their zone allocation and device text remain untouched. Any existing device zones placed within zone
groups are also unaffected.
Pre-Addressed Autolearn
This has been added and allows the engineer to Pre-Address the loop devices in any sequence using
a hand-held programmer(CF800). Once the system is installed, pre-addressed autolearn only
interrogates the devices without renumbering and saves the device list in memory.
NOTE: Caution should be used as any new device (254 address) will be ignored as will any holes in
the system addressing. All devices will be placed into zone 1.
Maintenance Autolearn
This is a recent addition from Display 3.3.50.44 dated 20/7/12 and loop version 3.2.4.51 which has
been added to support many additions.
If a large number of devices are to be added at the same time an autolearn may be required. Clearly
this is not acceptable on established systems therefore the maintenance autolearn has been
developed. When this feature is initiated:
• It supports holes. – This means it will populate spaces in the loop config with the new 254
address then move to the end of the loop, see next point below.
• It will address any devices with a 254 and place them into the next available address or at the
end of the loop whichever is available.
• It will leave the zoning and text information alone.
• Most importantly it will not alter the cause and effect of the existing devices.
Practical Example
Making amendments to systems where 1 or more loops are installed configured and working should
be done with care.
To recap, if using the Autolearn by loop feature and adding an additional loop, several things will
happen:
1. The additional loop will learn as required, all devices are put into zone 1, all triggers are
Global Fire and device text is default ‘address xx’
2. The existing loops will keep their previously programmed address text and zone allocation
but, all triggers will revert to Global Fire, effectively wiping all the previously configured Cause
& effect.
There are two ways to manage this situation but care needs to be taken;
Method 1 (Autolearn by loop)
• Firstly, using the Site Installer software, take a download of the current configuration file, add
an extra character to the panel name and save a copy. (e.g from Reception to Reception*)
• Next, run the autolearn by loop for the new loop (assuming all static cable checks have been
completed)
• Download again into the same site file, you now have two Panels that look the same in the
tree, one will be red. Look closely, with the extra character on the original file, you can identify
easily.
To Next Page
Loading...
