IO Link's features and capabilities have sparked a lot of interest, from parameter storing to thorough diagnostics. The IO Link interface increases sensor or field-level device communication capabilities via a standardized interface. This objective is relevant not only for complex installations or operations. It's also beneficial for simpler applications like those found in many automated systems.
Data from a non-contact rotary sensor, for example, can go beyond position readings by identifying a weak signal, allowing bladder accumulators to be scheduled. It enables engineers to access more information about a sensor's history and health in an application.
Understanding the IO-Link's Advanced Functions
- Storage of parameters:
IO Link stores parameters. When a replacement device is attached to the system, IO Link downloads the settings needed for simple installation and programming.
- Device verification:
When a device is replaced, IO Link may verify that the replacement product is the correct one. This is useful when sensors or hubs look similar but have differing capabilities. Device type, manufacturer, or even a serial number can all be used to verify a device.
- Tags for specialized applications:
IO Link allows users to read and write a string value to an IO Link device's configured "application-specific tag" object. This enhances device identification within a system. This is useful in the case of a tool changing application, for example, to allow identification and verification of accurate tooling.
- Acyclic read/write parameter access:
Because it is a digital communication interface, it can read and write parameters from Fieldbus devices at higher levels. The Fieldbus controller now has complete control over the IO Link device.
In Conclusion:
IO Link can be used in a broad range of automation applications, and even the most simple implementations can reap benefits. These advantages grow in proportion to the complexity of the entire automation system and the number of IO Link nodes added.
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