Detectors/Devices Menu
Page 51
Note:
If you need to replace or remove a device, please refer to page 136.
To add new bus devices to the system:
1.
From the Installer menu, select
Detectors/Devices
– Address Bus Device
, and press
when you see "Re-scan bus?". The following is displayed:
2.
When you see the above message, the control unit is ready to allocate an address to
each additional bus device that has a "null" address. The control unit allocates the
next available address when you press the following button/keys:
At a keypad:
press and hold “A” and “
” together. Release the keys when you
hear a sound. The display shows the allocated address, such as "b1-d52" (bus 1,
device 52).
At an expander:
press and hold the “Request Address” button. Release the
button when the display shows the bus address. If you do not want to use the
address shown, press the button again as many times as necessary to display
the required address.
Note:
An expander cannot obtain an address if the
"Disable Tamper" link is fitted.
At other types of device:
please refer to the device installation instructions.
Note:
Do not attempt to obtain an address for two devices at the same time.
3.
When you have finished addressing all devices, press
.
Re-scanning the bus
The control unit keeps a record of every bus device that it has learned. To keep the list up
to date, the control unit scans the bus during power up and when you leave the Installer
menu. You can also scan the bus by pressing
when you see the "Re-scan bus?" prompt
after selecting
Detectors/Devices
– Address Bus Device
.
During a scan, the control unit queries every device on the bus to report its bus address.
The control unit then compares the reported addresses with those that is has stored and
may report:
Duplicate bus addresses
– That is, devices that have the same address. You will
need to change the address of one of the devices to make it unique.
Found and/or lost bus devices
– If the control unit finds that a device is on the
bus that has not been added using the Installer menu, or that a previously-added
device is missing, the display shows, for example:
The top line shows the number of new devices found, and the number of existing
devices lost. The bottom line shows the first in the list of found and lost devices.
You can use the up/down navigation keys to scroll through the list.
If you see that there are found or lost devices:
Either:
Press
to return to the Installer menu to check that all devices are listed
and addressed correctly. Make sure that the devices are powered up.
Tip: To check the address of an expander, remove the lid and briefly press the
addressing button. The two-digit display shows the bus address for a few
seconds. For example “b1” followed by “08” is “bus 1 device 08”.