# 8.4.1 Bit alarm

**Description**

![](/files/-Lv4jOwW3ndZpXvP0MMc)

**1) Basic settings**

**Bit address:** Read address for bit alarm;

**Group No.:** Group number of bit alarm;

**2) Alarm condition:** It sets alarm trigger condition, there are two types, alarm when ON and alarm when OFF;

**3) Alert:** When the alarm occurs, the \[Control Bit] will set ON;

**4) Alarm Screen:** Pop-up alarm screen (it need to be sub-screen);

**Position:** The location of the screen alarm display.

**Pop-up Interval:** The time of reopen the alarm screen when alarm screen closed.

**Pop-up once:** Pop up alarm screen once.

**Close window when alarm off:** Automatically close the alarm screen when alarm off.

**5) Beep when alarm ON:** beep works when the alarm is triggered, in the default mode, the beep works until the alarm is released.

**Beep once:** Beep works once, when alarm is triggered;

**6) Content:** It is used for setting alarm content (command);

**Operating procedures of adding one alarm**

1\) Click \[Project]->\[Bit Alarm] as below shows;

![](/files/-Lv4jOwXt_GnSZNmwBbe)

2\) Click \[Add] button to open \[Bit Alarm] setting window;

![](/files/-Lv4jOwYq5VJ_icRB90v)

3\) Set \[Bit Address];

4\) Set \[Alarm Condition];

5\) Set \[Content];

6\) Other settings can be set according to the actual situation;

7\) Click \[OK] button to complete settings;


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