User manual

7
HEADING
5 DEVICE STATUSES
5.1.3 Test LED
The test LED of any device can be enabled or disabled from this pane. Right click on the
device icon and select “Toggle test LED”. Also, on small loops, options for turning the test LED
on for all devices is available from the “Settings and Commands” pane. Note: enabling the test
LED of a sounder will cause the sounder to enter the alarm state.
5.1.4 Automatic test LED
It is also possible to illuminate the test LED for all devices currently displayed, by checking the
“Illuminate visible” check box. See section 5.3 on filtering which devices are displayed and
which are hidden. If this is used along with the automatic analogue value refresh feature, it can
be used to turn the test LED on and off according to device state. This feature may be used,
for example, when locating devices requiring maintenance.
5.1.5 Cycling test LEDs
In the case of large loops when it is impossible to turn
all LEDs on, the feature to cycle through each one in
turn is available. You can either step through the
devices in turn yourself using the next and previous
buttons or if you wish, you can start the process of
automatically stepping through them. The delay can
be adjusted in the cases where you need time to get
from one to the next to confirm the test is successful.
Because the cycle is performed in address order, this also allows you to confirm the devices
are physically connected to the points you would expect.
All devices are broken down into one of three general categories according to how the analogue
value of the device is processed. Each device can then have the details of this altered. Note that
retrieving a device list, either by pre-addressed or by soft addressing, will remove any changes made
to these values.
5.2 Device settings