getting_started:tutorials:safetysystem
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getting_started:tutorials:safetysystem [2017/04/21 21:15] – graf | getting_started:tutorials:safetysystem [2020/02/11 14:36] – graf | ||
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====== Create a Safety System ====== | ====== Create a Safety System ====== | ||
- | In the EEROS library you will find a directory with examples. Open a shell in the build directory of your EEROS library and run '' | + | In the EEROS library you will find a directory with examples. Open a shell in the build directory of your EEROS library and run '' |
+ | < | ||
+ | $ ./ | ||
+ | </ | ||
The example comprises a safety system with five different safety levels and six safety events. | The example comprises a safety system with five different safety levels and six safety events. | ||
{{ : | {{ : | ||
- | The levels and events are defined in the safety properties. The properties further include one critical input and one critical output. | + | The levels and events are defined in the safety properties. The properties further include one critical input '' |
The following events are defined and used in the example: | The following events are defined and used in the example: | ||
^name^description^registered for safety level^type^when triggered^ | ^name^description^registered for safety level^type^when triggered^ | ||
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The example shows a typical use of safety levels and safety events. In order to demonstrate how the system works in a very limited example the following assumptions have been taken: | The example shows a typical use of safety levels and safety events. In order to demonstrate how the system works in a very limited example the following assumptions have been taken: | ||
* The end of the initialization phase is triggered by a periodic which is run by the executor. In general this would be signalled by the sequencer after a initializing sequence has finished or by the control system as soon as a certain condition arises. | * The end of the initialization phase is triggered by a periodic which is run by the executor. In general this would be signalled by the sequencer after a initializing sequence has finished or by the control system as soon as a certain condition arises. | ||
- | * To start and stop running might be triggered by pressing or releasing a button connected to the critical input. In our simple example we do not have real hardware. | + | * To start and stop running might be triggered by pressing or releasing a button connected to the critical input. In our simple example we do not have real hardware. |
* When pressing '' | * When pressing '' | ||
===== How to shut down ===== | ===== How to shut down ===== | ||
- | The example demonstrates how the system should be stopped in a well controlled manner, see [[getting_started: | + | The example demonstrates how the system should be stopped in a well controlled manner, see [[getting_started: |