PZEM-004T 3.0 Single Phase Electric Energy Communication Box TTL Modbus AC Voltmeter Current Watt Kwh Ammeter 220V 10A 100A

$4.68
Specification : 10A only module
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Description
Product Description

PZEM-004T 3.0 Single Phase Electric Energy Communication Box TTL Modbus AC Voltmeter Current Watt Kwh Ammeter 220V 10A 100A

 

 

1. Working voltage: 80 ~ 260VAC

2. Test voltage: 80 ~ 260VAC

3. Rated power: 100A/22000W

4. Operating frequency: 45-65Hz

5. Measurement accuracy: 1.0 grade

 

Function

 
  1. Voltage

1.1.1        Measuring range:80~260V

1.1.2        Resolution: 0.1V

1.1.3        Measurement accuracy: 0.5%

1.2   Current

1.2.1        Measuring range: 0~10A(PZEM-004T-10A); 0~100A(PZEM-004T-100A)

1.2.2        Starting measure current: 0.01A(PZEM-004T-10A); 0.02A(PZEM-004T-100A)

1.2.3        Resolution: 0.001A

1.2.4        Measurement accuracy: 0.5%

1.3   Active power

1.3.1        Measuring range: 0~2.3kW(PZEM-004T-10A); 0~23kW(PZEM-004T-100A)

1.3.2        Starting measure power: 0.4W

1.3.3        Resolution: 0.1W

1.3.4        Display format:

<1000W, it display one decimal, such as: 999.9W

≥1000W, it display only integer, such as: 1000W

1.3.5        Measurement accuracy: 0.5%

1.4   Power factor

1.4.1        Measuring range: 0.00~1.00

1.4.2        Resolution: 0.01

1.4.3        Measurement accuracy: 1%

1.5   Frequency

1.5.1        Measuring range: 45Hz~65Hz

1.5.2        Resolution: 0.1Hz

1.5.3        Measurement accuracy: 0.5%

1.6   Active energy

1.6.1        Measuring range: 0~9999.99kWh

1.6.2        Resolution: 1Wh

1.6.3        Measurement accuracy: 0.5%

1.6.4        Display format:

<10kWh, the display unit is Wh(1kWh=1000Wh), such as: 9999Wh

≥10kWh, the display unit is kWh, such as: 9999.99kWh

1.6.5        Reset energy: use software to reset.

1.7   Over power alarm

Active power threshold can be set, when the measured active power exceeds the threshold, it can alarm

1.8   Communication interface

RS485 interface

1   Communication protocol

1.1   Physical layer protocol

Physical layer use UART to TTL communication interface

Baud rate is 9600, 8 data bits, 1 stop bit, no parity

1.2   Application layer protocol

The application layer use the Modbus-RTU protocol to communicate. At present, it only supports function codes such as 0x03 (Read Holding Register), 0x04 (Read Input Register), 0x06 (Write Single Register), 0x41 (Calibration), 0x42 (Reset energy).etc.

0x41 function code is only for internal use (address can be only 0xF8), used for factory calibration and return to factory maintenance occasions, after the function code to increase 16-bit password, the default password is 0x3721

The address range of the slave is 0x01 ~ 0xF7. The address 0x00 is used as the broadcast address, the slave does not need to reply the master. The address 0xF8 is used as the general address, this address can be only used in single-slave environment and can be used for calibration etc.operation.