IoT Gateway

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Product Overview

Lead the charge on the Industrial Internet of Things (IIoT) at your organization with the IoT Gateway for KEPServerEX. It connects Operations with Information Technology (IT), enabling visibility across the enterprise. The IoT Gateway leverages the 150+ communications drivers within KEPServerEX to seamlessly stream real-time industrial control data directly into Big Data and analytic software applications for Business Intelligence and Operational Excellence.

IoT Gateway

Enterprise and cloud-based solutions enable organizations to search, monitor, analyze, and visualize KEPServerEX-generated data coming from PACs, PLCs, RTUs, flow computers, OPC servers, and other industrial hardware and software. Kepware has partnered with Big Data and analytics providers to enable insight into the operations and conditions of industrial devices and systems.

  • Measurement, Verification, and Constant Commissioning: Ensure that devices in the field operate as intended.
  • Capacity Planning: Monitor data for risk of unplanned device or system downtime.
  • Root-Cause Analysis and Remote Troubleshooting: Gain a better understanding of the cause of a particular failure on a particular device and improve efficiency.
  • Anomaly and Outlier Detection: Identify outliers that may be an early indicator of issues in device production or deployment.
  • Safety, Security, and Compliance: Gain visibility into system performance or set points that could put machines or people at risk, and quickly develop and access reports for compliance purposes.
  • Cybersecurity: Improve security posture across industrial systems to mitigate emerging cybersecurity threats.



  • Streams real-time data from KEPServerEX into Big Data and analytic software applications
  • Enables data collection from thousands of industrial sensors and machines, including PLCs, RTUs, PACs, DAQs, controllers, and many more
  • Provides four agents, including ThingWorx, MQTT, RESTful Server, and RESTful Client
  • Features Advanced Payload Configuration to support most applications
  • Supports deadband to limit data throughput
  • Supports tag import and export for quick project configuration and deployment
  • Supports multiple application connections simultaneously
  • Supports Array Writes
  • Supports MQTT Writes
  • Supports Cross Origin Resource Sharing (CORS)


  • MQTT Client
  • RESTful Web Services Client
  • RESTful Web Services Server
  • ThingWorx® AlwaysOn™

Available Languages

  • English

Release Notes



  • Added new agent type for publishing data to the ThingWorx platform. The ThingWorx binary protocol enhances configuration, performance, and secure communications.
  • Updated the minimum JRE version to Java 7 (JRE 1.7 32 bit) to support new gateway functionality.
  • Corrected an issue where the MQTT Agent could block all other agents if it did not connect on the initial attempt.
  • Corrected an issue where “Bad” quality updates were repeatedly sent to endpoints due to being interpreted as data changes.
  • Fixed a defect where write requests would timeout if the device's Scan Mode was set to "Demand Poll Only."
  • Fixed an issue where tag scan rate would revert to a default of 10ms if set higher than 32767.
  • Fixed an issue where the REST Client Agent was sending an invalid Accept header, causing the connection to be rejected with an HTTP error 406.
  • Expanded and corrected error handling on the MQTT engine to provide improved feedback.
  • Added support for an advanced template to format data for improved control over the payload being sent from the REST Client and MQTT agents. In addition to JSON, XML and CSV can be generated using this template.
  • Added support for writing to Array data types (with the exception of String Arrays).
  • Added support for writes via MQTT agents. The MQTT agent can be configured to subscribe to a topic on the MQTT broker to allow other publishers to write to tags under that agent.
  • Added support for users to enable or disable connections from Cross-Origin Resource Sharing (CORS) sources. This setting can be used when accessing the IoT Gateway REST Server agent from a custom web page.



  • New product that converts industrial data to IoT protocols including REST and MQTT.

Common Features

  • Offers customizable JSON data format to support most MQTT and REST applications
  • Supports deadband to limit data throughput
  • Supports tag import and export for quick project configuration and deployment
  • Has a configurable Publish Rate
  • Has a configurable data package size for single transactions

MQTT Client Agent Features

  • MQTT Client Security, including authorization and access
  • Supports Secure Socket Layer (SSL)
  • Supports MQTT Last Will and Testament for notification of unexpected connection failures
  • Supports Configurable Quality of Service (QoS) attempts

REST Client Agent Features

  • Supports Post and Put publish methods
  • Supports a configurable HTTP Header
  • Supports REST Client Authentication

REST Server Agent Features

  • Supports Browse, Read, and Write commands
  • Supports Secure Socket Layer (SSL)

What Is an Advanced Plug-In?

KEPServerEX is more than an OPC server—it’s a connectivity platform for industrial automation and IoT. Simply download KEPServerEX, and then select from Kepware’s library of more than 150 device drivers, client drivers, and advanced plug-ins to fit the communication requirements unique to your industrial control system.

An advanced plug-in extends the capabilities of the KEPServerEX connectivity platform. It provides enhanced server functionality, increasing the usefulness of data by transforming it beyond raw data in a device register.

Advanced plug-ins may be licensed individually or as part of suites, and can be licensed on demand as connectivity needs evolve.

Purchasing Information

IoT Gateway (1-500 tags)
Contact us for pricing

IoT Gateway Demo Video

Learn how to stream real-time machine and sensor data into the Cloud and on-premise solutions.

IoT Webinar Series

Access recordings from our IoT Webinar Series featuring IoT Alliance members Altizon, IOT Technology Solutions, DeviceLynk, Splunk, and Dell.

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