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lamaPLC: YR-3180 - Weight sensor module with UART or Modbus communication
The weighing acquisition module is a high-performance, multi-functional electronic weighing equipment. It uses advanced weighing technology to measure item weight in real time and display it on a five-digit digital display. It also includes upper- and lower-limit alarm functions. capable of achieving precise weighing control and monitoring. At the same time, this product also features a TTL communication interface and Modbus RTU protocol, enabling convenient, rapid communication with PLCs, computers, and other equipment to transmit and remotely control weighing data. In addition, it supports Type-C power supply and button debugging, improving convenience and stability.
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Key Specifications and Features
- Function: The YR-3180 is a smart weighing sensor module designed to be integrated into electronic scales and instruments. It converts the mechanical force from a load cell into a precise electrical signal and displays the weight numerically.
- High Precision: It features a 24-bit A/D resolution (using an HX710B AD chip) for accurate weight detection.
- Display: The module has a five-digit digital tube display for intuitive and clear weight readings.
- Connectivity: It supports both TTL and RS-485 interfaces and uses the standard Modbus RTU protocol, enabling data transmission and remote control.
- Alarm Function: The module includes upper- and lower-limit alarms for process control and quality management.
- Power Supply: Powered via a Type-C/5V power supply, it also supports key debugging functions.
- Sensor Compatibility: When powered by the 5V TTL serial port, it can connect up to 1-4 350Q weighing sensors (load cells).
- Acquisition Rate: The A/D acquisition rate can be set to 10 or 40 times per second (default is 10).
- Physical: It is a bare-board module (no shell), measuring 45mm x 22mm.
Power and Communication (Host Side)
The module is powered via Type-C or dedicated pins and supports dual communication modes:
- VCC: 5V DC Input.
- GND: System Ground.
- TTL Serial Port:
- TX: Transmit data (connects to MCU RX).
- RX: Receive data (connects to MCU TX).
- RS-485 Interface (if the model variant supports it):
- A (D+): RS-485 Differential A signal.
- B (D-): RS-485 Differential B signal
Modbus map
| Data Type | Description | Common Address Range | Access |
|---|---|---|---|
| Current Weight | The main measured value (often a 32-bit float or integer) | 30001 - 30002 (Input) | Read Only |
| Zero/Tare Command | A single coil or holding register to trigger a zero action | 0001 or 40001 (Coil/Holding) | Write Only |
| Device Address | The Modbus Slave ID (default is often 1 or 2) | 40002 (Holding) | Read/Write |
| Baud Rate | Communication speed setting (e.g., 9600, 19200 bps) | 40003 (Holding) | Read/Write |
| Alarm Limit (Upper) | The high limit for the alarm output | 40004 (Holding) | Read/Write |
| Alarm Limit (Lower) | The low limit for the alarm output | 40005 (Holding) | Read/Write |
Description: YR-3180 Intelligent weighing sensor module
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