Configurable-Observable Device

Configurable-Observable Device

In the development of IO-Link Masters, there is often a strong need to test different edge cases. For example, how the IO-Link Master behaves at the largest data storage sizes, or how it reacts when the IO-Link Device does not respond or responds with a delay. The Configurable-Observable Device (COD) offers a wide range of possibilities to extend the regular protocol tests with custom tests for IO-Link Masters. In addition, COD can emulate any IO-Link Device based on its IODD.

The COD is an IO-Link Device that can be configured and parameterized via REST API. The actual hardware communicates with the PC via USB. The REST API is provided by a PC-side server application called COD Communication Server.

Configurable-Observable Device Features

  • REST API for configuration and observation in automated test system
  • PC application for easy configuration
  • Emulate IO-Link Device by using its IODD
  • Fully configurable dynamic ISDU parameter handling, with settable error generation for each index and sub-index
  • Configurable DPP1 values (e.g. cycle time, process data, vendor and device ID, etc.)
  • Event generation
  • Process data mirroring, generation
  • Observation of IO-Link communication and internal device variables (e.g., startup sequence, data storage flags)
  • Error generation (e.g., emulation of a faulty device)
  • Non-volatile memory to store configured parameters permanently

Usage of the Configurable-Observable Device

  • 1 COD hardware
  • PC configurator application
  • COD Communication Server application

Configurable-Observable Device

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