# A16 Direction ### Definition Reverse flow definition. Default: normal flow. ### Notes N/A ### Operation Procedure

Button Functions (Click to Expand)

When the main screen is displayed in **green backlight**, the four buttons function as follows: *

**Blue Button (leftmost):** Return, exit, or save settings. * Gray Direction Buttons: *

**Left Gray:** Previous Page, decrease value, or select item *

**Right Gray:** Next Page, increase value, or select item *

**Orange Button (rightmost):** 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 %}

``` A16 Direction Setting Steps • From the main screen (green backlight), press Orange Button (Setup) to enter settings (orange backlight). • Use Gray Arrow Buttons to select A. Measure , press Orange Button (Enter). • Use Gray Arrow Buttons to select A16 Direction, 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). ```

### A16 Options, RS485 Values, Read/Write Commands, and Formats

Options	Description	RS-485 value
Normal (Default)	Forward Flow: Water flows in the positive direction as defined by the flowmeter.	0
Inverse	Reverse Flow: Water flows in the negative direction as defined by the flowmeter.	1

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