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PLC and SCADA Integration of USB Data Loggers Using Smart-Hub

PLC and SCADA Integration of USB Data Loggers Using Smart-Hub

MEI 21/10/2026 0
PLC and SCADA Integration of USB Data Loggers Using Smart-Hub Many industrial monitoring systems already use PLCs, HMIs, or SCADA software as the main supervisory platform. At the same time, standalone USB data loggers may already be installed for temperature, voltage, current, humidity, pulse, state, or other measurements.Microedge Smart-Hub provides a practical way to connect supported USB data loggers to an Ethernet network and make their real-time measurements available to industrial systems through Modbus TCP.This Application Note shows how a USB data logger can be integrated into a PLC or SCADA system using Smart-Hub as a communication gateway.  1. Application A typical application may already include one or more USB data loggers installed close to sensors or equipment.Examples include:Temperature monitoring4–20 mA process transmittersVoltage monitoringRelative humidityEquipment state monitoringPulse or event countingLaboratory or test-system measurementsThe customer may want these measurements to become available to an existing:PLCHMISCADA systemIndustrial PCBuilding-management systemCustom Modbus TCP applicationInstead of replacing the USB data loggers, they can be connecte...
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Remote Temperature Monitoring for Refrigerators, Freezers and Cold Storage

Remote Temperature Monitoring for Refrigerators, Freezers and Cold Storage

MEI 20/10/2026 0
Refrigerators, freezers, cold rooms, and other temperature-controlled storage areas often require continuous temperature monitoring rather than occasional manual checks.By connecting temperature sensors to a Microedge data logger, temperatures can be recorded automatically, viewed in real time, and monitored remotely through a PC or web browser. Alarm thresholds can also be configured to help identify temperatures that move outside the desired range.This Application Note shows several practical ways to build a remote temperature monitoring system using Microedge data loggers and software.  1. Application Typical applications include:RefrigeratorsFreezersWalk-in coolersCold roomsFood storage areasLaboratory refrigeratorsPharmaceutical storageEnvironmental chambersTemperature-controlled warehousesA typical monitoring system consists of:Temperature Sensor → Data Logger → Network → Monitoring Software → Browser / PCThe data logger records temperature continuously while the monitoring software provides access to current and historical data.  2. Choosing the Temperature Sensor The most appropriate sensor depends on the temperature range and installation.ThermocouplesThermocouples are use...
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Remote Tank Level Monitoring Using a 4–20 mA Level Transmitter

Remote Tank Level Monitoring Using a 4–20 mA Level Transmitter

MEI 20/10/2026 0
Tank level is commonly measured with pressure, hydrostatic, ultrasonic, or other level transmitters that provide a 4–20 mA output. By connecting the transmitter to a Microedge current-input data logger, the level can be recorded continuously, converted into engineering units, and monitored locally or remotely.This Application Note shows a typical system for monitoring tank level using a 4–20 mA transmitter.  1. Application Consider a storage tank where the liquid level must be monitored continuously.Instead of checking the tank manually, a 4–20 mA level transmitter measures the liquid level and sends the signal to a data logger.A typical system consists of:Level Transmitter → 4–20 mA → Data Logger → PC / Network → Monitoring SoftwareThe system can provide:Continuous level recordingReal-time level displayHistorical graphsEngineering-unit conversionRemote monitoringAlarm monitoring when used with supported software and system configurations  2. Typical Measurement System A common two-wire 4–20 mA transmitter requires an external DC power supply.A typical loop is:24 VDC Power Supply (+) → 4–20 mA Level Transmitter → Microedge Current Input → 24 VDC Power Supply (−)The transmitter cont...
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4–20 mA Sensors and Data Loggers: Wiring, Measurement and Scaling

4–20 mA Sensors and Data Loggers: Wiring, Measurement and Scaling

MEI 20/10/2026 0
The 4–20 mA current loop is one of the most widely used signal standards in industrial measurement and process monitoring. Pressure, temperature, level, flow, humidity, and many other transmitters commonly provide a 4–20 mA output that can be recorded by a data logger or read by a control system.This Technical Note explains how a 4–20 mA signal works, how it is connected to a data logger, and how the measured current can be converted into meaningful engineering units.  1. What Is a 4–20 mA Signal? A 4–20 mA transmitter converts a physical measurement into an electrical current.Typically:4 mA represents the minimum measurement20 mA represents the maximum measurementFor example, a pressure transmitter with a range of 0–100 PSI may produce:CurrentPressure4 mA0 PSI8 mA25 PSI12 mA50 PSI16 mA75 PSI20 mA100 PSIUnlike a voltage signal, a current-loop signal is generally less affected by voltage drop in long cables, making 4–20 mA widely used in industrial environments.The 4 mA lower limit also provides a useful distinction between a valid minimum reading and certain fault conditions such as an open circuit.  2. Typical 4–20 mA Measurement System A basic 4–20 mA measurement system includes:...
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USB, WiFi, Ethernet, REST API or Modbus TCP: Choosing the Right Data Logger Communication Method

USB, WiFi, Ethernet, REST API or Modbus TCP: Choosing the Right Data Logger Communication Method

MEI 19/10/2026 0
  Modern data loggers can communicate through USB, WiFi, Ethernet, RESTful Web API, and Modbus TCP. These methods serve different purposes, so the best choice depends on how the logger will be used.A simple way to decide is to ask:Is the logger used locally or remotely?Does a person, custom application, or industrial control system need the data?Do you need historical recorded data, real-time readings, or both?  USB: Simple Local Connection USB is the simplest option when the data logger is located near a Windows PC.Typical connection:Data Logger → USB → SiteViewUSB is well suited for:Logger configurationData downloadReal-time monitoringLaboratory testingShort-term experimentsFor many standalone logging applications, USB is all that is required.  Smart-Hub: Put USB Data Loggers on the Network A USB data logger can also be accessed remotely by connecting it to a Microedge Smart-Hub.Typical architecture:USB Data Logger → Smart-Hub → Ethernet NetworkSmart-Hub provides three main functions:USB Device ServerRESTful Web APIModbus TCP GatewayThrough its USB Device Server function, supported loggers can be accessed by:SiteViewSiteView-Web / PlutoSiteView SDKThis allows existing USB-based S...
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Thermistors, Thermocouples, and RTDs: Which Sensor is Best for You?

Thermistors, Thermocouples, and RTDs: Which Sensor is Best for You?

MEI 18/12/2024 0
Thermistors, Thermocouples, and RTDs: Which Sensor is Best for You?When it comes to temperature measurement, selecting the right sensor is critical for obtaining accurate, reliable data. As a data logger manufacturer, we understand that choosing the appropriate sensor for your application can directly impact the success of your temperature monitoring. Here, we’ll explore the key differences between thermistors, thermocouples, and resistance temperature detectors (RTDs), helping you choose the right data logger for your needs.Thermistors What is a Thermistor? A thermistor is a temperature-sensitive resistor that exhibits a significant change in resistance with temperature changes. Typically made from ceramic or polymer materials, thermistors are highly sensitive and accurate within a limited temperature range.Advantages:• High Sensitivity: Thermistors provide precise readings within their operational range.• Cost-Effective: They are affordable and easy to integrate into various systems.• Compact Size: Their small form factor allows for use in tight spaces. Limitations:• Limited Temperature Range: Generally, thermistors are effective within -50°C to 150°C.• Non-linear Response: The r...
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Receive Alarm Email Notifications with Microedge Data Logging System

Receive Alarm Email Notifications with Microedge Data Logging System

MEI 01/04/2024 0
In an era where precision and control are paramount, maintaining optimal environmental conditions is crucial, especially in sensitive areas like computer rooms, laboratories, or storage facilities. We at Microedge Instruments are committed to providing you with cutting-edge solutions to monitor and manage environmental parameters efficiently.How It Works? SiteView-Web is a web based software system designed specifically to automate data downloading and monitor the real-time parameters from remote data loggers effortlessly.One standout feature of SiteView-Web is its robust alarm notification ability. It promptly alerts you via email when monitored parameters exceed predefined thresholds. This proactive approach empowers you to swiftly address any deviations, mitigating potential damage or downtime.The following screenshot illustrates how to configure alarm notifications.  And alarm emails will be dispatched to an email group whenever the real-time temperature readings for CH0 and CH1 exceed the predefined thresholds.The following Alarm Status screen shows CH0 and CH1 are in High Alarm states:An Alarm Notification email looks like:Please consult the detailed instructions for SiteView...
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Engineering Unit Conversion Made Easy with Microedge's Software

Engineering Unit Conversion Made Easy with Microedge's Software

MEI 25/01/2024 0
In a data logging application, the seamless conversion of input signals from sensors, transmitters, or transducers into accurate engineering units is a critical and fundamental process. Whether dealing with temperature sensors outputting a 4-20mA current signal or determining the dew point from temperature and relative humidity values, our Microedge Data Logging System excels in making these complex conversions effortless.At the core of our software and system are Custom Equations—source code functions written in C# programming language that empower you to generate any engineering unit of your choice. Let's take the example of a temperature sensor:This equation generates temperature value (0-100 Celsius) from 4-20mA current value.Within 'MyTemperature' function, you have the flexibility to integrate any C# source code, tailored to your sensor's specifications, to convert the 'Input' value into the desired engineering unit.For more intricate calculations, our system allows the use of multiple functions for a more organized approach. Consider the equation for calculating dew point:In this equation, 'Channels[0]' holds the temperature reading, and 'Channels[1]' contains the relative h...
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Data Logger Applications in Cold-Chain Industry

Data Logger Applications in Cold-Chain Industry

MEI 07/01/2024 0
Data Logger Applications in Cold-Chain IndustryIn our dynamic and fast-paced world, the cold-chain industry stands as a cornerstone, guaranteeing the secure transportation and storage of temperature-sensitive goods. Data loggers emerge as indispensable tools within this industry, playing a pivotal role in offering crucial insights and safeguarding the integrity of temperature-sensitive products across the entire supply chain.Let's delve into a detailed exploration of the indispensable role played by data loggers in the cold-chain industry.Ensuring Product Quality:In the cold-chain industry, maintaining specific temperature conditions is paramount to preserving the quality, efficacy, and safety of temperature-sensitive products. Data loggers continuously monitor and record temperature variations during transportation, storage, and handling, ensuring that products such as pharmaceuticals, biotechnological materials, and perishable foods remain within the specified temperature range.Compliance with Regulatory Standards:Stringent regulatory standards govern the transportation and storage of temperature-sensitive goods, particularly in industries like pharmaceuticals and biotechnology. ...
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Product Release - SMART-HUB

Product Release - SMART-HUB

MEI 17/07/2023 0
Introducing the "Smart-Hub" - the new slim hardware product that will revolutionize the way you access and interact with your data loggers. This 3-in-1 device is designed to provide users with remote access to all connected data loggers, making it easier than ever before to monitor and retrieve data remotely and in multiple ways.The first feature of Smart-Hub is USB Device Server. This allows Microedge’s software / system (SieView, SiteView SDK, SiteView-Web and Pluto) to access the data loggers connected to the USB ports of the product through TCP sockets remotely. This function is especially useful for users who are using Microedge’s software and need to access data loggers that are located in remote or hard-to-reach locations without the need to physically connect them to a computer.The second function of Smart-Hub is RESTful web APIs.  These standardized API endpoints can be used to access data loggers across multiple platforms and systems. This feature is especially useful for users who need to integrate data loggers with other software and systems.The third function of Smart-Hub is Modbus gateway that turns all connected data loggers into Modbus TCP slave devices. The standar...
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Product Release - Site USB Device Server Pro (DSP-2C)

Product Release - Site USB Device Server Pro (DSP-2C)

MEI 29/03/2023 0
We are pleased to announce the launch of our new product - Site USB Device Server Pro (DSP-2C).     The revolutionary USB-over-Ethernet device server designed for remote access to data loggers through Microedge's systems. With its advanced performance based on a Single Board Computer (SBC), the DSP-2C operates at maximum capacity, delivering unparalleled reliability and functionality.Designed with durability in mind, the DSP-2C features a sturdy aluminum enclosure that can withstand even the harshest environments, making it the perfect solution for industrial and commercial applications.Whether you're using SiteView, SiteView-Web, or Pluto web server hardware, the DSP-2C enables remote access to your data loggers with ease. Simply plug it into your Ethernet port, connect your data loggers, and let the DSP-2C do the rest.The DSP-2C is perfect for a range of industries, including manufacturing, healthcare, and energy. Its versatility and advanced features make it an essential tool for remote data management, allowing you to focus on what matters most - running your business.With its powerful performance, rugged design, and seamless integration with Microedge's systems, the Site USB ...
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Communicating with Microedge Data Loggers Made Easy!

Communicating with Microedge Data Loggers Made Easy!

MEI 12/04/2022 0
With our ongoing commitment to both software and hardware improvements, it’s now much easier to communicate with any Microedge data logger.All Microedge data loggers have Plug & Play USB ports which makes them easy to be accessed by Windows-based users. Simply plug the data logger into the USB port of the computer, and SiteView / SiteView SDK will automatically recognize it.Microedge has released multiple USB Device Servers to allow any Microedge data logger to be accessed remotely via Ethernet / WIFI. Details...All Microedge PRECISE-LOG series data loggers have on-board WIFI modules, enabling them to be accessed directly through a WIFI connection. Any PRECISE-LOG data logger can be configured to serve as a Modbus slave device, allowing it to be viewed by any Modbus client via Modbus TCP protocol. Details...Pluto-Web Server hardware and SiteView-Web Web Server software build a web server cloud system that synchronizes data loggers’ parameters automatically, allowing monitoring all data loggers’ real-time readings and historical data right in your web browsers. SiteView-Web can run the web server under all operating systems such as Windows, Linux and macOS Details...Two new custom d...
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Product Release - Site USB Device Server Industrial

Product Release - Site USB Device Server Industrial

MEI 06/02/2021 0
We are pleased to announce the launch of our new product - Site USB Device Server Industrial (DSI-1).A USB Device Server is a USB-over Ethernet device server that allows Microedge's data loggers to be accessed by Microedge's software applications remotely, such as SiteView desktop application, SiteView-Web web server application running under all operating systems and Pluto hardware.DSI-1 is based on Single Board Computer (SBC), providing the highest performance and low power consumption. Its slim form factor design makes it ideal for system integration applications.DSI-1's industrial temperature range makes it work perfectly in the harshest industrial environment.Please visit the product specifications page for details....
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Product Release - Site USB Device Server Pro

Product Release - Site USB Device Server Pro

MEI 04/02/2021 0
We are pleased to announce the launch of our new product - Site USB Device Server Pro (DSP-1).A USB Device Server is a USB-over Ethernet device server that allows Microedge's data loggers to be accessed by Microedge's software applications remotely, such as SiteView desktop application, SiteView-Web web server application running under all operating systems and Pluto hardware.DSP-1 is based on Single Board Computer (SBC), providing the highest performance and low power consumption. Its slim form factor design makes it ideal for system integration applications.DSP-1 offers four on-board USB ports allowing four data loggers to be connected instantaneously. It has not only an Ethernet port, providing cabled network but also a WIFI module, allowing it to be placed anywhere cabled network may not be available.Please visit the product specifications page for details....
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Product Release - SiteView-Web

Product Release - SiteView-Web

MEI 30/10/2020 0
We are pleased to announce the launch of our new product - SiteView-Web, the webserver software for multiple operating systems!SiteView-Web is web server software that can run under most popular operating systems including Windows, Linux and macOS. It can accommodate data loggers and USB device servers that Microedge produces and bring them on-line.You no longer need to take any data loggers back to the office for downloading. The system will download data automatically. If there are any readings beyond the alarm thresholds, the system will email out the alarm notifications.No software is needed to view what happens to your field or chamber. Just open a web browser from your smartphone, tablet or laptop to view the complete system. ...
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