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2.5.4.1 Alarm
2.5.4.1.1 Enabling Alarm-in and Alarm-out Ports
You can set several parameters of relay activation such as relay-in, period, anti-dither, and sensor
type. When an alarm is triggered, the system sends the alarm signal to external devices to trigger, for
example, buzz.
Procedure
Step 1 Select
Setting
>
Event
>
Alarm
>
Alarm
.
Step 2 Select the checkbox of
Enable
to enable alarm input for the current channel.
Step 3 Select alarm input channel.
Step 4 Click
Setting
next to
Period
to set the period of alarm input. For details, see "2.5.1.9
Setting Time Schedule".
Step 5 Configure other parameters.
Table 2-27 Parameter description
Parameter Description
Anti-dither
Enter anti-dither time (1 s–100 s). System will only record one when there are
multiple alarms during the defined time.
Sensor Type
Select relay-in type according to the connected alarm input device.
●
NO
: Low level valid.
●
NC
: High level valid.
Alarm-out
Port
Optocoupler output. Select the checkbox to activate corresponding alarm
output device when alarm occurs.
Duration The time that delays alarm when alarm occurs.
Step 6 Click
Save
.
2.5.4.1.2 Alarm-out Port
This function is used to check if the alarm-out port is working properly.
Procedure
Step 1 Select
Setting
>
Event
>
Alarm
>
Alarm-out Port
.
Step 2 Click
NO1
or
NO 2
.
Select the one or both that are connected to devices so that there is a response for you to
know if the port is working properly.
Step 3 Click
Trigger Mode
to send an alarm-out signal.
For example, the camera connects to a buzzer. When you click
Trigger Mode
, the buzzer
buzzes, meaning the alarm-out port works properly.
2.5.4.2 Abnormality
Set an alarm-out mode for different events. When an abnormality happens, the system triggers an
alarm.
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