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Tags: data logger

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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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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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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Temperature Monitoring in Concrete Maturity

Temperature Monitoring in Concrete Maturity

MEI 26/05/2018 0
Concrete maturity indicates how far curing has progressed. Maturity is the relationship between concrete temperature, time, and strength gain. It is represented by an index value that can be measured in real time in the field. The maturity method, often simply referred to as maturity, is a way of evaluating new concrete’s in-place strength by relating time and temperature measurements to actual strength values.To expedite schedules, increase safety, and improve construction methods, construction teams want to know the strength of their concrete at the job site in real time. Since maturity is related to concrete strength, the maturity method is a way to accomplish this without solely relying on standard test specimens and laboratory testing.Maturity is calculated by tracking changes in fresh concrete temperature over time. Since each concrete mix has its own strength-maturity relationship, we can use maturity to estimate the strength of that mix at any moment after placement. When we know the maturity of a certain concrete, we can use that concrete’s specific strength-maturity relationship.When using the maturity method, construction teams can estimate real-time strength gain of in-...
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Thermistor and Water

Thermistor and Water

MEI 20/05/2018 0
An NTC thermistor is designed to measure temperature changes in different applications, but it is truly ideal for working in liquids (such as water). This is a result of long-term reliability and stability. They are the most accurate temperature gauges (when compared to a thermocouple), which allows for extremely close readings.A thermistor placed in water will most likely stay in one place for extended periods of time. A thermistor offers long-term durability for thermistor in water-based applications. A thermocouple will begin to weaken, which degrades its ability to read temperature accurately. Having to consistently replace thermocouples will intermittently stop production.A study about water temperature changes in Lake Tahoe has just recently ended. It was a 40-year study that suggests global warming is responsible for an increase in temperature in the lake (there has been a consistent rise over the last four decades). This is a big problem for the current habitat of the lake, and the warmer water threatens to destroy the whole eco-system.NTC thermistors were extensively used for this study because of their high accuracy rates. The thermistors helped to prove that the temperat...
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4-CH RTD Data Logger Launched!

4-CH RTD Data Logger Launched!

MEI 01/01/2018 0
We are proud to announce the launch of SITE-LOG LRTDThe SITE-LOG LRTD-1/2/3 is a 4-channel, battery powered, standalone RTD data logger. The logger records the ambient temperature and four resistance temperature detectors (RTDs). Data is stored in 8MB non-volatile flash memory for later retrieval.Three models are available for all 3 or 2-wire RTD types (PT100, PT500, PT1000). Its versatile equations simplify engineering unit conversion. Plug & Play USB port makes the communication easy and Its aluminum enclosure makes it excellent in the harshest industrial environment....
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