https://iiotdevices.com/Structured reference system for industrial connectivity hardware, protocol fit, device categories, and comparison workflows.en-usSat, 04 Apr 2026 11:21:47 GMThttps://iiotdevices.com/applications/https://iiotdevices.com/applications/Application-first research paths for industrial connectivity, telemetry, and distributed device selection.https://iiotdevices.com/applications/machine-connectivity-retrofits/https://iiotdevices.com/applications/machine-connectivity-retrofits/A practical reference for retrofit projects that connect existing machines to newer monitoring, analytics, and data systems without disrupting operations.https://iiotdevices.com/applications/oee-and-downtime-data-from-legacy-lines/https://iiotdevices.com/applications/oee-and-downtime-data-from-legacy-lines/A retrofit application guide for plants extracting OEE and downtime signals from older production lines without rebuilding controls.https://iiotdevices.com/applications/plc-data-collection-for-mixed-vendor-lines/https://iiotdevices.com/applications/plc-data-collection-for-mixed-vendor-lines/A practical reference for plants collecting machine data across Siemens, Allen-Bradley, Mitsubishi, and other mixed-vendor lines without redesigning controls.https://iiotdevices.com/applications/preparing-brownfield-machine-data-for-industrial-ai/https://iiotdevices.com/applications/preparing-brownfield-machine-data-for-industrial-ai/A practical guide for plants that want AI and analytics from legacy equipment without pretending poor machine data foundations will somehow fix themselves later.https://iiotdevices.com/applications/remote-sites-and-telemetry/https://iiotdevices.com/applications/remote-sites-and-telemetry/A reference path for distributed assets, low-touch maintenance environments, and telemetry-driven IIoT hardware decisions.https://iiotdevices.com/comparisons/https://iiotdevices.com/comparisons/Structured comparison workflows for industrial connectivity hardware, vendors, and protocol-driven decisions.https://iiotdevices.com/comparisons/gateway-vs-edge-computer-for-retrofit-data-projects/https://iiotdevices.com/comparisons/gateway-vs-edge-computer-for-retrofit-data-projects/A shortlist-stage comparison for plants deciding whether retrofit machine data work needs a gateway-class device or a fuller edge-compute footprint.https://iiotdevices.com/comparisons/retrofit-gateway-shortlist-criteria/https://iiotdevices.com/comparisons/retrofit-gateway-shortlist-criteria/A comparison framework for teams shortlisting industrial gateways for retrofit, data collection, and mixed-protocol integration projects.https://iiotdevices.com/comparisons/selection-workflow/https://iiotdevices.com/comparisons/selection-workflow/A step-by-step comparison framework for narrowing IIoT hardware and vendor options with less bias and more operational discipline.https://iiotdevices.com/device-types/https://iiotdevices.com/device-types/Reference material for the hardware categories that appear most often in industrial connectivity and telemetry projects.https://iiotdevices.com/device-types/gateways-edge-computers-and-rtus/https://iiotdevices.com/device-types/gateways-edge-computers-and-rtus/A practical comparison of three frequently confused hardware classes in industrial telemetry and connectivity projects.https://iiotdevices.com/product-families/https://iiotdevices.com/product-families/Durable category pages for industrial gateways, remote I/O, edge hardware, and related product families.https://iiotdevices.com/product-families/edge-data-logging-gateways-for-retrofits/https://iiotdevices.com/product-families/edge-data-logging-gateways-for-retrofits/A product-family reference for retrofit teams that need local buffering, lightweight logging, and practical machine-data extraction without a full edge software stack.https://iiotdevices.com/product-families/industrial-gateways/https://iiotdevices.com/product-families/industrial-gateways/A category-level guide to industrial gateways, including where they fit, how they differ from edge computers and RTUs, and what buyers should evaluate before choosing one.https://iiotdevices.com/product-families/protocol-converters-and-serial-device-servers/https://iiotdevices.com/product-families/protocol-converters-and-serial-device-servers/A product-family reference for retrofit projects that need to expose serial assets, bridge protocol boundaries, or extend the useful life of legacy machine connectivity.https://iiotdevices.com/product-families/remote-io-systems/https://iiotdevices.com/product-families/remote-io-systems/A category guide to remote I/O architectures used in industrial monitoring, control, and distributed site design.https://iiotdevices.com/protocols/https://iiotdevices.com/protocols/Protocol-fit reference pages for industrial connectivity hardware, telemetry paths, and interoperability planning.https://iiotdevices.com/protocols/modbus-opc-ua-and-mqtt-fit/https://iiotdevices.com/protocols/modbus-opc-ua-and-mqtt-fit/A practical comparison of Modbus, OPC UA, and MQTT, including where each protocol belongs and how they often coexist in modern IIoT architectures.https://iiotdevices.com/protocols/opc-ua-vs-mqtt-for-machine-data-aggregation/https://iiotdevices.com/protocols/opc-ua-vs-mqtt-for-machine-data-aggregation/A protocol comparison for teams deciding how machine data should move upstream after field access and retrofit boundaries are already understood.https://iiotdevices.com/protocols/polling-vs-publish-for-legacy-machine-data/https://iiotdevices.com/protocols/polling-vs-publish-for-legacy-machine-data/A protocol-behavior comparison for retrofit teams deciding how often older machines should be queried and when event- or publish-style patterns are more practical upstream.https://iiotdevices.com/protocols/serial-to-ethernet-bridging/https://iiotdevices.com/protocols/serial-to-ethernet-bridging/A practical protocol and hardware boundary guide for serial-to-Ethernet integration in industrial environments.https://iiotdevices.com/vendors/https://iiotdevices.com/vendors/Vendor-focused reference pages for mapping industrial connectivity portfolios to application needs and rollout realities.https://iiotdevices.com/vendors/phoenix-contact-industrial-networking/https://iiotdevices.com/vendors/phoenix-contact-industrial-networking/A vendor reference page for Phoenix Contact in industrial connectivity, interface, and modular field hardware contexts.https://iiotdevices.com/vendors/siemens-industrial-connectivity/https://iiotdevices.com/vendors/siemens-industrial-connectivity/A vendor reference page for Siemens in industrial connectivity, gateway, and automation-adjacent research contexts.https://iiotdevices.com/vendors/vendor-portfolio-analysis/https://iiotdevices.com/vendors/vendor-portfolio-analysis/A framework for evaluating industrial connectivity vendors by category strength, ecosystem fit, and lifecycle support.