FP-AS510 C02 Del. Total

Definition

This function manually resets the flow meter’s Totalizer to zero.

C02 Options – RS485 Values, Read/Write Commands, and Format

For Firmware version 2.2.9 and before:

Option	RS485 Description	RS-485 Value
Reset Totalizer	Yes	0
No Reset	No	1

For version P2301 and after:

Option	RS485 Description	RS-485 Value
No Reset	No	0
Reset Totalizer	Yes	1

RS485 Remote Totalizer Reset (C02 Del. Total)

Item	Description
Parameter Name	C02 Del. Total
Description	Resets the Totalizer to zero
Register Address	02 01
Register Length	1
Data Type	unsigned Int16
Write Command	Function Code 06

Example: Execute Totalizer Reset (Function Code 06)

The master can use Function Code 06 to write a specified value to the C02 register to trigger the reset.

Master Sends Write Command（TX Frame）

TX: 01 06 02 01 00 01 18 72

• Slave Address：01

• Function Code：06

• Starting Register Address：02 01（C02）

• Written Value：00 01（Clear command for Firmware version P2301 ）

• CRC：18 72（Modbus RTU CRC，Low byte first）

Slave Response Data（RX Frame）

RX: 01 06 02 01 00 01 18 72

If the RX frame exactly matches the TX frame (including the CRC), it indicates that:

• The command has been successfully executed.

• The value 00 01 has been correctly written to Register 02 01.

• The slave has completed and acknowledged the C02 clear operation.