Smart-Hub is a compact network communication gateway that allows supported Microedge USB data loggers to be accessed remotely over Ethernet.

It combines three major functions in one device:

1. USB Device Server
2. RESTful Web API
3. Modbus TCP Gateway

Up to 4 supported Microedge data loggers can be connected to Smart-Hub's dedicated USB ports. Smart-Hub then connects those loggers to the local Ethernet network, allowing Microedge software and third-party systems to access them remotely. 

Supported logger families include:

• SITE-LOG
• iLOG
• PRECISE-LOG USB models

Smart-Hub is particularly useful when a USB data logger must remain installed away from the monitoring computer or when the same logger data must be made available to several different software or industrial systems.

USB Device Server

Smart-Hub acts as a USB Device Server, extending supported USB data loggers across the Ethernet network.

The basic architecture is:

Data Logger → USB → Smart-Hub → Ethernet Network → Microedge Software

Supported Microedge applications include:

• SiteView
• SiteView-Web
• SiteView SDK
• Pluto

This allows a remote USB data logger to be accessed without physically connecting it to the monitoring computer. 

For example:

SITE-LOG → Smart-Hub → Ethernet → SiteView

or:

iLOG → Smart-Hub → Ethernet → SiteView-Web / Pluto

This is the most direct way to add Ethernet network access to a supported Microedge USB data logger.

RESTful Web API

Smart-Hub provides a RESTful Web API for integration with custom software and third-party systems.

The API allows supported applications to access functions such as:

• Viewing data logger activities
• Downloading recorded data
• Retrieving real-time readings

A typical architecture is:

Data Logger → Smart-Hub → Ethernet → REST API → Custom Software

This makes Smart-Hub suitable for developers building:

• Custom dashboards
• Web applications
• Database systems
• Data analytics applications
• Automated data collection software
• Middleware
• Other software integrations

The custom application communicates with Smart-Hub using standard web API requests rather than implementing Microedge's proprietary logger communication protocol. 

Modbus TCP Gateway

Smart-Hub can also operate as a Modbus TCP Gateway.

Supported data loggers connected to Smart-Hub are exposed to Modbus TCP masters as network-accessible devices.

Real-time logger readings are made available through Modbus Input Registers, allowing compatible systems to poll and consume the measurements.

Typical Modbus TCP master devices include:

• PLCs
• HMIs
• SCADA systems
• Industrial PCs
• Building-management systems
• Custom Modbus software

A typical architecture is:

USB Data Logger → Smart-Hub → Ethernet → Modbus TCP Master

This allows existing USB data loggers to become part of an industrial Modbus TCP system without requiring built-in Ethernet or WiFi.

Multiple Communication Methods from One Gateway

One of the main advantages of Smart-Hub is that the same connected data logger can be accessed in several different ways.

For example, a logger connected to Smart-Hub may be accessed through:

• SiteView for configuration and data download
• SiteView-Web / Pluto for browser-based monitoring
• SiteView SDK for custom Windows applications
• RESTful Web API for custom software
• Modbus TCP for PLC, HMI, or SCADA integration

This reduces the need for separate communication hardware for each application.

Remote Access over Ethernet

Smart-Hub connects to the local network through Ethernet.

After connection, its IP address can be assigned automatically through DHCP. 

The typical network path is:

Data Logger → USB → Smart-Hub → Ethernet → Local Network

From there, compatible software or systems can access the logger remotely.

This is useful for:

• Laboratories
• Manufacturing areas
• Equipment rooms
• Environmental monitoring sites
• Test chambers
• Remote cabinets
• Distributed data logging installations

Admin Web Portal

Smart-Hub includes a browser-based Admin Web Portal for device configuration and management.

The portal can be used to review and change Smart-Hub settings from a web browser. 

Typical administration tasks may include:

• Network configuration
• Connected logger status
• Access settings
• Device configuration

Password-Protected Access

Smart-Hub provides password protection so access can be limited to authorized clients.

For installations involving remote access, REST API, or Modbus TCP, normal network-security practices should also be used, such as:

• Firewalls
• Network segmentation
• Strong passwords
• VPN access for remote users
• Restricting access to trusted devices

Smart-Hub should generally be placed behind appropriate network security rather than exposed directly to the public Internet.

Power for Connected Data Loggers

Smart-Hub provides 5 VDC power to connected data loggers through its USB ports.

This allows the connected data loggers to operate from Smart-Hub power rather than consuming their internal batteries during network-connected operation. 

This is particularly useful for long-term remote installations where continuous communication is required.

Up to Four Data Loggers

Smart-Hub provides four dedicated USB ports for supported Microedge data loggers.

Up to four compatible SITE-LOG, iLOG, or PRECISE-LOG USB data loggers can be connected at the same time. 

Each logger can then be accessed through the supported Smart-Hub communication functions.

KEY FEATURES

• 3-in-1 Communication Gateway

  • USB Device Server
  • RESTful Web API
  • Modbus TCP Gateway

• Four USB Ports
  Supports up to four compatible Microedge data loggers.

• Ethernet Network Connection

• Remote SiteView Access

• SiteView-Web / Pluto Support

• SiteView SDK Support

• RESTful Web API
  Provides structured access for custom software.

• Modbus TCP Gateway
  Makes real-time logger readings available to PLC, HMI, SCADA, and other Modbus TCP masters.

• Multiple Client Access
  Multiple clients can access a connected logger simultaneously. 

• Browser-Based Admin Portal

• Password-Protected Access

• DHCP Network Configuration
  IP address can be assigned automatically by the network DHCP server. 

• 5 VDC Power to Connected Loggers
  Helps preserve logger battery life during network operation. 

  
  

TYPICAL APPLICATIONS

Smart-Hub is suitable for:

• Remote access to USB data loggers
• Ethernet data logger networking
• SiteView remote logger access
• SiteView-Web monitoring
• Pluto monitoring systems
• Custom software integration
• REST API data collection
• PLC integration
• HMI integration
• SCADA integration
• Modbus TCP data acquisition
• Distributed laboratory monitoring
• Industrial process monitoring
• Environmental monitoring
• Long-term unattended data logging

SYSTEM ARCHITECTURES

SiteView

USB Data Logger → Smart-Hub → Ethernet → SiteView Windows PC

Smart-Hub acts as a USB Device Server.

SiteView-Web / Pluto

USB Data Logger → Smart-Hub → Ethernet → SiteView-Web Server / Pluto

SiteView-Web or Pluto can then provide browser-based monitoring.

SiteView SDK

USB Data Logger → Smart-Hub → Ethernet → Custom Windows Application Using SiteView SDK

RESTful Web API

USB Data Logger → Smart-Hub → Ethernet → Custom Software

The application communicates with Smart-Hub through REST API endpoints.

Modbus TCP

USB Data Logger → Smart-Hub → Ethernet → PLC / HMI / SCADA

Smart-Hub acts as a Modbus TCP Gateway.

DOCUMENTS

• Smart-Hub Specifications
• Smart-Hub Quick Start