Basic Info.
Usage
Meter for Industry and Home Use, Standard Electric Energy Meter, Multi-Functional Energy Meter, Maximum Demand Meter, Watt-Hour Meter
AC Voltmeter Type
Electrostatic
Product Description
PZEM-004T Power Meter 110V/220V 10A/32A/63A/100A TTL AC Single Phase Amp Voltmeter Analyzer Modbus Energi Meter Power Kwh Energy MonitoringThis document describes the specification of the PZEM-004T AC 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 theTTL interface.
Product Type | PZEM-004T 3.0v |
Function | This module is mainly used for measuring AC voltage, current, active power, frequency, power
factor and active energy,without display, the data is read through the TTL interface. |
Voltage Range | AC 80-260V |
Current Range | 10A(only host) 32A/100A(with split CT) 32A/63A/100A(with coil CT) |
Active Power | 0-23KW |
Energy Range | Energy Range |
Power Factor | 0.00~1.00 |
Frequency | 45Hz~65Hz |
Weight | 133g |
Communication Port | TTL interface |
Physical layer protocol | Baud rate is 9600, 8 data bits, 1 stop bit, no parity |
- Communication protocol
- Physical layer protocol
Physical layer use UART to RS485 communication interface
Baud rate is 9600, 8 data bits, 1 stop bit, no parity
- 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.
- Read the measurement result
The command format of the master reads the measurement result is(total of 8 bytes):
Slave Address + 0x04 + Register Address 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 + ... + 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 function
- 0x02,Illegal address
- 0x03,Illegal data
- 0x04,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 enlarge the 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 our forwarder 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?
Address:
3F, #962 Mingshu Road, Jiangshan Town, Ningbo, Zhejiang, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Company Introduction:
Peacefair Electronic Co., Ltd is founded in 2014 year, it is located in Ningbo Zhejiang. The area of the factory is 700 square meter, we have two professional assembly line, 12 workers, 2 engineers, 2 sales men. We are a professional manufacturer of AC and DC digital panel meter. We manily work on the design, produce and whosale and retail of the electronic products. All products have the patent and CE, FCC certificate. The products have been sold to world wide and have been used by the user in various kinds of field.
We are always doing our best to develop and produce good products with best price. Welcome to my company and look forward to doing business with you in the near future.
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