Modbus temperature and humidity sensor: the core of environmental perception for industrial intelligence

Under the wave of Industry 4.0 and the Internet of Things, the accurate collection and efficient transmission of environmental data have become the cornerstone of the digital transformation of enterprises. Modbus temperature and humidity sensors are becoming core components in smart factories, green agriculture, smart buildings and other fields with their standardized protocols, high compatibility and industrial-grade reliability. This article will explain the technical highlights and industry value of RS485 temperature and humidity sensor (EID041-G01S).

Product advantages:

Built-in imported temperature and humidity sensor chip (SHT30)
SHT30 is known for its high precision and can provide very accurate temperature and humidity readings. The temperature measurement accuracy can reach ±0.2℃ and the humidity measurement accuracy can reach ±2%RH.
Modbus RTU protocol communication
As one of the most widely used communication protocols in the industrial field, Modbus RTU modules can be easily integrated into existing industrial control systems. Users can achieve interconnection between modules and other devices without complex programming or additional hardware support. It can be directly connected to PLC, SCADA, configuration software (such as Siemens, Mitsubishi, Kunlun Tongtai and other devices).

RS485 interface communication

RS485 supports long-distance data transmission, theoretically up to 1200 meters, much farther than RS232 and other standards; RS485 supports the construction of multi-point networks, allowing multiple devices to share the same communication bus, thereby reducing wiring requirements and costs; the use of differential signal transmission makes RS485 have strong anti-interference capabilities in noisy environments, especially suitable for applications in industrial environments. The RS485 protocol is relatively simple and easy to integrate into existing systems.

Support Modbus address and baud rate configuration
In the same Modbus network, by setting different slave device addresses, the system scale can be easily expanded and more devices can be added without conflicts. Problems can be quickly located and solved through their unique addresses without affecting the normal operation of other devices;
Choosing the most suitable baud rate (data transmission rate) according to actual needs can maximize data transmission efficiency while ensuring communication quality; in an environment with large noise interference, a lower baud rate can be selected to improve communication reliability; and in scenarios with high real-time requirements, a higher baud rate can be used to speed up data exchange.

Pluggable terminals

Pluggable terminals greatly simplify the installation and removal process of electrical connections, without the need for complex steps such as screw fixing, saving time and labor; when repairs or component replacements are required, pluggable terminals allow quick disconnection and reconnection of circuits, thereby reducing system downtime; the feature of supporting rapid assembly and replacement enables equipment manufacturers to more easily adopt modular design concepts and improve production flexibility and efficiency. Since the connection and disconnection operations can be completed without tools, safety hazards caused by improper use of tools are reduced.

Supports positioning hole and guide rail installation

Provides two installation methods: positioning hole and guide rail. Positioning holes allow accurate positioning and fixing by screws or other fixings, ensuring that the equipment or components can be installed accurately according to the design requirements; the guide rail installation method usually supports quick insertion and removal, which greatly facilitates the installation and maintenance of the equipment. The design that supports both positioning hole and guide rail installation provides users with a more comprehensive and flexible solution.

Wide voltage power supply with anti-reverse connection protection

Supporting 5~36V DC wide voltage power supply, the device can be compatible with a variety of different power supply solutions, which allows greater freedom in system design, without the need for additional design adjustments to match specific power supply specifications. The anti-reverse connection protection mechanism can effectively prevent equipment damage caused by mistakenly reversing the positive and negative poles of the power supply, greatly improving the safety of use. It reduces the risk of hardware failure due to operational errors, and correspondingly reduces the cost of maintenance and service.

Wide temperature measurement range

The device supports a temperature measurement range of -40℃~+125℃, which can adapt well to a variety of complex environments, provide effective solutions, and expand its application areas.