RS485 Pressure Sensors

RS485 pressure sensors transmit pressure signals through the 485 bus. There are main advantages: easy integration into digital sensor networks; longer transmission distances, up to 1000m; more efficient and reliable data reading.

Modbus-RTU intelligent pressure transmitters act as slaves in RS485 communication networks and follow the Modbus RTU protocol to communicate with the host to achieve remote pressure reading. Read and write parameters, restore data and other operations.

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What is the RS485 signal of the pressure transmitter?

The RS485 communication interface is a commonly used serial communication standard. It is widely used in industrial automation, data acquisition and remote control. It has the advantages of high reliability, strong anti-interference ability and support for long-distance transmission, so it is very popular.

The RS485 interface uses half-duplex communication. It allows multiple devices to communicate through the same bus. It uses differential signal transmission and can effectively resist electromagnetic interference. Suitable for long-distance transmission.

MODBUS is a communication protocol based on the RS485 interface, which is commonly used in the industrial field. It defines specifications such as data transmission format, commands and register addresses. It realizes data exchange and control between devices.

Vacuum Pressure Sensors for Vacuum-Negative Pressure Measurement

Advantages of RS485 Pressure Sensors

Digital output, using RS485 (standard Modbus-RTU protocol);
Using diaphragm isolation technology, it has corrosion resistance and anti-blocking characteristics;
Using integrated chip, it has the advantages of compact structure, easy installation and wide voltage power supply;
Current limiting, voltage limiting, reverse connection protection (current limiting output);
Measurement accuracy up to 0.5% FS, 0.1% FS;
With low voltage, low power consumption, easy installation and use;
Can transmit data through 485 bus, with great anti-interference ability. Can work normally in complex electromagnetic environment.

Pressure transmitter RS485 to USB module

The RS485 lead wire of the pressure transmitter is a four-core shielded wire (as shown in the figure, red and blue are connected to the positive and negative of the power supply, yellow A, white B, and silver are shielded wires).
Just connect the positive and negative wires of the power supply to the positive and negative of the DC power supply.
The AB line is connected to the AB wiring port of the RS485 to USB module.

The RS485 to USB module has 5 interfaces. Just connect the AB interface to the AB interface of the pressure transmitter lead wire. Then connect the USB terminal to the USB port of the computer. Download a driver and you can see this port in the device manager of the computer.

Featured RS485 Pressure Sensors

What is the RS485 signal of the pressure transmitter?

Advantages of RS485 Pressure Sensors

Pressure transmitter RS485 to USB module

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