IO-Link functions similarly to traditional field I/O but also collects diagnostic and operational data from IO-Link capable devices, helping pinpoint potential problems or improvements. IO-Link systems consist of one IO-Link master and at least one IO-Link device.
Traditional field I/O devices are great for controlling and monitoring processes that are located remotely from the main control cabinet. While IO-Link devices will perform the same general function as traditional field I/O devices, they go one step further by providing a window into the device itself for insight on potential problems or possible improvements:
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IO-Link master modules are the interface between field devices and higher-level controllers/information systems; they also control data traffic between the connected devices. Master modules can handle a variety of signals so you can mix and match traditional I/O devices with advanced IO-Link devices, to serve a wide range of applications requiring basic and/or rich process data.
IO-Link hubs easily connect multiple digital sensors and actuators to a single IO-Link master port using a single standard cable. These hubs are for standard field I/O signals and do not transmit diagnostic information. However, the IO-Link master module does monitor each channel for current and voltage anomalies. IO-Link hubs are an economical solution for a high-quality decentralized installation.
IO-Link enabled photoelectric sensors offer reliable object detection along with enhanced diagnostics and configuration data, providing advanced warnings of potential issues and remote, on-the-fly parameter changes. A variety of IO-Link capable photoelectric sensors support general purpose, distance, dark and shiny object, clear object, and colored object detection applications.
IO-Link enabled inductive proximity sensors can transmit health and performance data, along with metal object detection signals, for better analysis of operations and advanced warning of potential problems. An assortment of IO-Link capable inductive proximity sensors are available in various sizes for standard or harsh duty presence sensing applications.
RFID Read-Write modules, along with RFID tags, are used for object identification purposes. These modules utilize IO-Link communication for module configuration, status and diagnostic information, alarming, target object identification data, and more.