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.. _safety_flags:
Safety Flags
============
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The safety flags are represented in software by the following enums
.. doxygenenum :: safety_flag
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The safety flags can be temporarily or permanent. Some temporary flags are reset automatically, once the error condition disappears. Others have to be explicitly cleared.
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----------------------------------------------------------------------------------------------------------------------------------
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.. _safety_flags_adc_overflow:
ERR_FLAG_MEAS_ADC_OVERFLOW
--------------------------
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`` ERR_FLAG_MEAS_ADC_OVERFLOW `` is triggered in case of an overflow in the signal path of the measurement ADC. This should never happen unless there is a bug in the software.
========== ============= ============= ===========
persistent self-clearing Stops PID Panic Mode
========== ============= ============= ===========
yes no yes no
========== ============= ============= ===========
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----------------------------------------------------------------------------------------------------------------------------------
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.. _safety_flags_adc_off:
ERR_FLAG_MEAS_ADC_OFF
---------------------
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`` ERR_FLAG_MEAS_ADC_OFF `` signals that the measurement ADC for the PT1000 sensor is deactivated. This flag is automatically cleared by the firmware
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once the ADC is started.
========== ============= ============= ===========
persistent self-clearing Stops PID Panic Mode
========== ============= ============= ===========
no yes yes no
========== ============= ============= ===========
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----------------------------------------------------------------------------------------------------------------------------------
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.. _safety_flags_adc_watchdog:
ERR_FLAG_MEAS_ADC_WATCHDOG
--------------------------
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`` ERR_FLAG_MEAS_ADC_WATCHDOG `` is used as a wire break detection mechanism. This flag is set when the PT1000 measurement ADC detects an invalid resistance measurement.
.. seealso :: :ref: `ADC Watchdog<firmware_meas_adc_watchdog>`
========== ============= ============= ===========
persistent self-clearing Stops PID Panic Mode
========== ============= ============= ===========
no no yes no
========== ============= ============= ===========
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----------------------------------------------------------------------------------------------------------------------------------
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.. _safety_flags_adc_unstable:
ERR_FLAG_MEAS_ADC_UNSTABLE
--------------------------
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`` ERR_FLAG_MEAS_ADC_UNSTABLE `` is set after startup of the PT1000 measuremnt or after reconfiguring the filter settings.
.. seealso :: :ref: `firmware_meas_adc_filter`
========== ============= ============= ===========
persistent self-clearing Stops PID Panic Mode
========== ============= ============= ===========
no yes no no
========== ============= ============= ===========
