# D01 BoardComm Alarm

### Definition

Set the flow meter’s alarm mode for carrier communication module malfunctions. Default: Do Not Disturb. The alarm code belongs to Alarm – A.

### Notes

In **Do Not Disturb (DND) mode**, the screen color does not change during an abnormal condition, but values and status bits on the communication and status pages still indicate the issue.

{% hint style="info" %}

### DND Mode

When **Do Not Disturb (DND) mode** is enabled:

* The flow meter detects abnormal conditions but the red backlight will not turn on.\
  \&#xNAN;*Example:* Alarm-A “4 Off Pipe” will not trigger the backlight in DND mode.
* Abnormal conditions are still displayed on the **Status/Alarm page**.
* If connected via RS485, the monitoring system still receives the alarm signal.
* OCT alarm outputs continue to operate if configured.
  {% endhint %}

<figure><img src="https://3404778090-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fi4ECt41Kyy9211OWazj4%2Fuploads%2FxMV8GI8oiFvD4tL1zpBI%2FFU-LT-D01-en.png?alt=media&#x26;token=82dc2540-953c-40c2-bbe1-bcf7ef906e0b" alt="" width="375"><figcaption></figcaption></figure>

### Operation Procedure

<details>

<summary><strong>Button Functions (Click to Expand)</strong></summary>

The main unit has **four buttons**. The **bottom line (Line 3)** of the LCD displays the current function of each button. Under normal operation, the button functions are as follows:

* <img src="https://content.gitbook.com/content/i4ECt41Kyy9211OWazj4/blobs/BZuNjMgY75LH0onY5NtL/image" alt="" data-size="line"> **Blue Button -** Leftmost button: Return, exit, or save settings.

Gray Arrow Buttons:

* <img src="https://content.gitbook.com/content/i4ECt41Kyy9211OWazj4/blobs/Br88VpmnPLAPdutxVdZb/image" alt="" data-size="line"> **Left Gray Button:** Page up, increase value, or select item
* <img src="https://content.gitbook.com/content/i4ECt41Kyy9211OWazj4/blobs/3Dzp8nuxmHsaZ7LqBscw/image" alt="" data-size="line"> **Right Gray Button:** Page down, decrease value, or select item
* <img src="https://content.gitbook.com/content/i4ECt41Kyy9211OWazj4/blobs/sq6fX6r39JE0Au2hahAR/image" alt="" data-size="line"> **Orange Button:** Rightmost button: Enter settings, edit, or confirm selection

{% hint style="danger" %}
**Do not hold buttons for extended periods to avoid damage.**
{% endhint %}

{% hint style="info" %}
Button functions may change depending on the operation context to improve usability or prevent accidental presses.
{% endhint %}

</details>

```
D01 Board Communication Alarm Setting Steps
• From the main screen (green backlight), 
press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select D. Alarm & Info, press Orange Button (Enter).
• Use Gray Arrow Buttons to select D01 Board Communication Alarm, press Orange Button (Enter).
• Use Gray Arrow Buttons to choose the options. 
• Press Orange Button (Set) to confirm.
• Press Blue Button (ESC) to return to the main screen (green backlight).
```

<figure><img src="https://3404778090-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fi4ECt41Kyy9211OWazj4%2Fuploads%2FdmeiUYi2vlAlz3VaEmdL%2FFU-LT-D01-en.png?alt=media&#x26;token=32adfb92-f0a3-4cd9-81ae-cbe51a1d2e5a" alt="" width="375"><figcaption></figcaption></figure>

### D01 Options, RS485 Values, Read/Write Commands, and Formats

| Options                               | Description | RS-485 Value |
| ------------------------------------- | ----------- | ------------ |
| On                                    | -           | 1            |
| <p>Do Not Disturb</p><p>(Default)</p> | -           | 2            |

> Refer to the[ Read/Write Memory](https://docs.lorric.com/qr/fu-lt-english-v1/communication/modbus-rtu-protocol/read-write-memory-ram) List for the Modbus command format. This parameter uses the Int16 data format.