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Place of Origin: | China |
---|---|
Brand Name: | Sysolution |
Certification: | FCC,CE certification |
Model Number: | RM1275 |
Minimum Order Quantity: | 1 |
Price: | Negotiation |
Packaging Details: | carton box |
Delivery Time: | 2-3 working days |
Payment Terms: | T/T,PayPal |
Supply Ability: | 30 units per week |
Voltage Range: | 1-380v | Current Range: | 200mA-50A |
---|---|---|---|
Frequency: | AC45-65Hz | Temperature: | Chips'temperature |
Minimum Electrical Energy Variables: | 0.001kWh | Operating Temperature: | -40℃ - +80℃ |
Size: | 60mm*65mm*40mm |
RM1275 single-phase AC energy metering module is a new product released by Sysolution Technology to accommodate various manufacturers to monitor the power consumption of their products. The software and hardware platform it uses has been applied in a large number of industrial products such as smart meters, and is the smallest unit to achieve power metering.
RM1275 has been applied on a large scale in many industries, such as AC charging pile, street lamp post monitoring, machine room, base station monitoring, energy-saving transformation, intelligent power management, dynamic loop, security monitoring, equipment energy consumption monitoring, etc. The accuracy of the module is better than the national level 1 standard; it can measure AC voltage, current, power, power factor, frequency and other electrical data from 45 to 65Hz; its communication protocol conforms to Modbus RTU communication protocol and DL/T645-2007 multi-functional energy meter communication, and it is easy to connect with other micro controllers and ARM to realize automatic data acquisition and monitoring through corresponding interfaces.
This module can be easily embedded in street lamp post monitoring, smart home, smart household appliances, energy-saving transformation, intelligent power management, security monitoring, equipment energy consumption monitoring and many other industries, is an important supporting module to follow the trend of Internet of Things.
Measuring Parameters | |
Watt-hour Mete Level |
Level 1.0(Note 1)
|
Voltage Range | 1-380V ±0.5%F.S |
Current Range | 20mA-50A ±0.5%F.S |
Current Range Extension | Expandable range, open-ended transformer (customized) |
Frequency | AC45~65Hz |
Temperature | Chip Temperature |
Minimum Power Variable | 0.0001kW |
Power Factor | Measurable |
Pulse Constant | 1000imp/kWh |
Minimum Electrical Energy Variable | 0.001kWh |
CO₂ | National standard formula calculation |
Communication Functions | |
Interface Type | 485 communication (built-in ESD protection) |
Communication Protocol | DL/T 645-2007 and MODBUS-RTU dual protocol |
Data Format | Default "n,8,1" (no parity bit, 8 data bits, 1 stop bit) |
Baud Rate | 2400bps-19200bps,default 4800bps |
Data Refresh Interval | ≥250ms |
Indicator | Power indicator / communication indicator (red) |
Power | |
Typical Power Consumption | ≤10mA |
Power Supply | DC5.0V power supply, 3.3V power supply is available for shortly connect |
Pressure Resistance Level | AC3000Vrms |
Overload Capacity | 1.2 times the range |
Environment | |
Working Temperature | -40~+80℃ |
Relative Humidity | 5~95%, no condensation (Under 40℃) |
Altitude | 0~3000 m |
Working Environment | No explosive, corrosive gas and conductive dust, no significant vibration and shock places |
Structure | |
Size | Length 60mmx width 65mmx height 40 mm |
Wiring Pin Pitch | 3.81mm pitch (standard 3.81 green terminal) |
Transformer Aperture | Φ12.8mm |
Installation Method | Four corner fixing holes (3.5 aperture) installation |
Pin | Function |
V+ | positive power supply for metering module |
V- | Negative power supply for metering module |
Description: This group voltage is the module power supply voltage, default DC5V, while shortly connected the module RDJ1 and RDJ2 points can support 3.3V power supply, at this time the reverse protection function fails, pay attention to the correct wiring, reverse connection will directly burn out the chip. |
|
EARTH | Connected to earth, can be suspended when not needed |
B | External 485B |
A | External 485A |
P+ | External pulse port P+ |
P- | External pulse port P- |
L | Connect the measured live wire |
N | Connect the measured Neutral wire |
Modbus protocol electrical parameter register list 1 (default, 4 bytes per address, high byte first)
Number | Project | Register Address | Word Length | Read/Write | Data Type & Description |
1 | Voltage | 0048H | 4 | Read |
Hexadecimal unsigned number Unit 0.0001V Actual value = HEX2DEC (register value) x unit, same as below |
2 | Current | 0049H | 4 | Read | Hexadecimal unsigned number Unit 0.0001A |
3 |
Active power | 004AH | 4 | Read |
Hexadecimal unsigned number Unit 0.0001W Negative power initial F, actual power is 2^32- decimal register value |
4 | Active energy | 004BH | 4 | Read/Write | Hexadecimal unsigned number Unit 0.0001KWh |
5 | Power Factor | 004CH | 4 | Read | Hexadecimal unsigned number Unit 0.001 |
6 | Carbon dioxide emission | 004DH | 4 | Read | Hexadecimal unsigned number Unit 0.0001Kg |
7 | Temperature | 004EH | 4 | Read | Hexadecimal unsigned number Unit 0.01℃ |
8 | Frequency | 004FH | 4 | Read | Hexadecimal unsigned number Unit 0.01 Hz |
9 | Address & Baud Rate | 0004H | 2 | Read/Write |
Hexadecimal system Default value is 0105H: (Address 01H 8,N,1,4800), the default address is 1 High byte represents address, range 1~255, 0 is broadcast address Low byte: High 2 bits data format (00: 10-bit data "8,N,1") No checksum 1-bit end bit (01: 11-bit data "8,E,1") Even parity 1-bit end bit (10: 11-bit data "8,O,1") Odd-check 1-bit end bit Low byte: Lower 4 bits are baud rate (3: 1200bps 4: 2400bps) (5: 4800bps 6: 9600bps) (7: 19200bps) |
Note 1: The power direction function is an optional function
Modbus protocol electrical parameter register list 2 (customized, 2 bytes per address, high byte first)
Number | Definition | Register Address | Read/Write | Data Type & Calculate Description |
1 | Voltage | 0048H | Read | Unsigned number, value=DATA/100, unit V |
2 | Current | 0049H | Read | Unsigned number, value=DATA/100, unit A |
3 | Active power | 004AH | Read | Unsigned number, value=DATA, unit W |
4 |
Active energy |
004BH | Read | Unsigned number, value=DATA/3200, unit kWh |
004CH | Read | |||
5 | Power Factor | 004DH | Read | Unsigned number, value=DATA/1000 |
6 |
Carbon dioxide emission |
004EH | Read |
High CO2 emission Low CO2 emission, value = DATA/1000, unit Kg |
004FH | Read | |||
7 | Temperature | 0050H | Read | Reserved (this function is not available in this module) |
8 |
Frequency |
0051H | Read | Value = DATA/100, unit Hz |
9 | Address & Baud Rate | 0004H | Read/Write |
Hexadecimal system Default value is 0105H: (Address 01H 8,N,1,4800), the default address is 1 High byte represents the address, range 1~255, 0 is the broadcast address Low Byte: High 2 bits data format (00: 10-bit data "8,N,1") No parity 1-bit end bit (01: 11-bit data "8,E,1") Even parity 1-bit end bit (10: 11-bit data "8,O,1") Odd-check 1-bit end bit Low Byte: The low 4 bits are baud rate (3: 1200bps 4: 2400bps) (5: 4800bps 6: 9600bps) (7: 19200bps) |
For More Communication Protocols, please download the RM1275 Datasheet in Download Center.
Unmarked dimensional tolerance: GB1804-m
Standard Application Wiring Diagram
Short contact indication diagram