China Energy Meter Power Meter Kwh Meter

AC SiCable Tools ngle Phase100A Voltage Current Power Energy Meter

This document describes the specification of thePZEM-004TAC communication module, the module is mainly used for measuring AC voltage, current, active power, frequency, power factor and active energy, the module is without display function, the data is read through theTTLinterface.

ProductTypePZEM-004TAccuracy1.0gradeDisplaySize73.3*30mmOperating frequency45-65HzWeight90gTestRange1.Voltage: 80~260V
2.Current:0~100A
3.Power:0~22kW
4.Energy:0~9999kWh

CurrentRange

100A

accessory

coil CT+USB cable, without the display and the box

Function

1 Voltage

Measuring range:80~260V

2 Current

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

3Active power

Measuring range: 0~23kW(PZEM-004T-100A)

4Power factor

Measuring range: 0.00~1.00

5Frequency

Measuring range: 45Hz~65Hz

6Active energy

Measuring range: 0~9999.99kWh

Communication protocol Physical layer protocolPhysical layer use UART to RS485 communication interface
Baud rate is 9600, 8 data bits, 1 stop bit, no parityApplication layer protocolThe 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.Read the measurement resultThe command format of the master reads the measurement result is(total of 8 bytes):
Slave Address + 0x04 + Register AddrePneumatic Tools ss High Byte + Register Address Low Byte + Number of Registers High Byte + Number of Registers Low Byte + CRC Check High Byte + CRC Check Low Byte.
The command format of the reply from the slave is divided into two kinds:
Correct Reply: Slave Address + 0x04 + Number of Bytes + Register 1 Data High Byte + Register 1 Data Low Byte + ..Linear Actuator . + CRC Check High Byte + CRC Check Low Byte
Error Reply: Slave address + 0x84 + Abnormal code + CRC check high byte + CRC check low byte
Abnormal code analyzed as following (the same below)0x01,Illegal function0x02,Illegal address0x03,Illegal data0x04,Slave error
FAQ
Q: Can I get better price?
A: Prices are different for different order quantity and specific demands. We would like to offer you very good price to help you enlargethe market share.Q: Are factory or only company?
A: We are factory of AC DC digital panel meter .Q: How about the shipping cost?
A: If your goods is small for LCL, we can send goods to you via counier, such as FEDEX,TNT,there is good rate from our side.
If your goods is FCL, it need be sent via sea, we can send you frieght quotations DDU or FOB,CIF, you can choose whether use ourforwarder or yours.Q: How about the sample time? What is the payment?
A: You can come to my official store in aliexpress to place the sample order, we will ship it out with in 3-5 days after the payment.
T/T, alibaba trade assurance etc,we can talk all the possibilities.Q: Is your product in good quality?
A: The quality is depended on the price.And it is better to purchase the sample to test the quality first,then place an order.Q: Could you make OEM with our logo?
A: Yeah,we have factory to produce the goods to you with your own logo..It depend on your quantity.Q: Why do I choose you?
A: 1): Reliable---we are the real company, we dedicate in win-win
2): Professional---we offer the newest digital panel meter.
3): Factory---we are the manufacturer, so we have the Stable product source,reliable technical support and reasonable priceQ: Where is your Loading Port?
A: Ningbo,China
Shanghai, China
Other China port is accepted.Q: How to control Quality of Mass?
A: We have our own QC Team (5 workers). Every step of mass production will be inspectedLab Utensil and Disposable in time.Q: How long will you guarantee the mass quality?
A: We will be responsible for our mass even the mass are in yourMagnetic Material warehouse. We Trust our Quality.
Almost more than 95% clients will cooperated with us for long time from 1st order.Q: Is there any tracking Number for my order?
A: Yes, after we ship the cargo, we will provide the tracking number for your order to you, and
you can view the shipment status on the corresponding shipping company website.Q: Do you offer retail service?
A: Yes, we have an official store on aliexpress, If you need retail service you can come here.Q: Can we visit your factory?
A: Sure, our factory is in Ningbo. Pls let us know when you come, we will pick up you at airport.