Transmissor de peso digital de 4 canais RS485 Modbus RTU Conversor de sinal de célula de carga 10-28VDC para controle industrial PLC - AliExpress.io

Specifications

Brand Name

YANJIUKEJI

High-concerned chemical

None

Origin

Mainland China

Output

Digital Sensor

Theory

Resistance Sensor

Type

Optical-Electronics Sensor

is_customized

Yes

Use

Pressure Sensor

Material

Polymer

Power Supply

10-28V DC

Power Consumption

< 2W

Operating Current

Depends on sensors; drive capacity 500 mA

Operating Temperature

-40~85°C

Humidity

0-95% RH, non-condensing

Protection Level

IP65

Excitation Voltage

5VDC ±3%

Channels

2-4 load cell inputs

Resolution

1/500,000

Sampling Rates

10Hz, 40Hz, 640Hz, 1280Hz

Communication Interface

RS485, Modbus RTU, Function Codes 03/06/16

Baud Rates

2400*600000 bps (configurable via DIP or software)

Addresses

1-255, broadcast = 254

Sensor Drive

Up to 4 X 350Ω sensors per channel

ADC Type

Sigma-Delta

Isolation & Protection

Optical isolation, power isolation, surge protection

Mounting

DIN rail or fixed mounting

Product Description

Parameter	Specification
Power Supply	10–28V DC, <2W
Operating Current	Depends on connected sensors, max drive 500mA
Channels	2–4 load cell inputs
Sensor Excitation	5V DC ±3%
Sensor Drive	Up to 4 × 350Ω sensors per channel
Input Signal Range	0 to ±30 mV
Resolution	1/500000
Sampling Rates	10Hz, 40Hz, 640Hz, 1280Hz (selectable)
ADC Type	Sigma-Delta
Communication	RS485, Modbus RTU, Function Codes 03/06/16
Baud Rates	2400–600000 bps (configurable via DIP or software)
Slave Address	1–255, broadcast = 254
Isolation & Protection	Optical isolation, power isolation, surge protection
Operating Temp	–40 to +85°C
Humidity	0–95% RH (non-condensing)
Protection Level	IP65
Mounting	DIN rail or fixed mounting
Weight	~250g

Communication Interface

The transmitter provides RS485 communication with standard Modbus RTU protocol, ensuring compatibility with PLCs, DCS, and industrial PCs.

Specifications:

Item	Specification
Interface	RS485 (2-wire differential)
Protocol	Modbus RTU
Supported Function Codes	03 (Read), 06 (Write Single Register), 16 (Write Multiple Registers)
Baud Rate Options	2400, 4800, 9600, 19200, 28800, 38400, 57600, 115200, 128000, 230400, 256000, 460800, 500000, 512000, 600000 bps
Slave Address (software)	1–255 (default = 1), broadcast = 254
Slave Address (DIP)	0–15 (DIP switch configuration)
Default Settings	Baud rate: 115200, Data bits: 8, Stop bit: 1, Parity: None, Address: 1, Byte order: Little-endian (2143)

RS485 Cabling:

Maximum distance: up to 1200 m at 9600 bps.

For short-distance debugging, ordinary cables are acceptable. For longer runs, use shielded twisted pair cables.

For multi-drop connections, connect a 120Ω termination resistor across A and B at the end of the line.

Indicators & Reset:

P (Power): Always ON when powered.

G (Comm): Blinks during communication (frequency depends on baud rate).

T (TX): Blinks when transmitting.

R (RX): Blinks when receiving.

Reset button: Hold >3s to restore factory defaults (⚠ clears calibration data).

Pros & Cons

Pros

Alta resolução 1/500.000 e taxas de amostragem até 1280Hz
Suporte a 4 canais com isolamento óptico
RS485 Modbus para PLC industrial robusto
Ampla faixa tensão 10-28V e temp -40~85°C

Cons

Configuração via DIP/software requer conhecimento técnico
Corrente depende de sensores conectados
Não inclui células de carga
Peso e montagem DIN podem complicar instalação portátil

Common Questions

Qual a alimentação do transmissor de peso RS485 Modbus?

10-28VDC, consumo <2W, ideal para PLC industrial.

Quantos canais de célula de carga suporta?

2-4 canais, até 4 sensores 350Ω por canal, resolução 1/500.000.

Qual interface de comunicação?

RS485 Modbus RTU, baud rates configuráveis 2400-600000 bps.

Temperatura de operação do conversor de sinal?

-40~85°C, IP65 proteção, umidade 0-95% RH.

Prazo de envio para o transmissor 4 canais?

Da China, 15-35 dias, montagem DIN rail facilitada.