RecoverDetectors

Bases: KPFTranslatorFunction

Try to examine the state of all detectors an run the appropriate recovery

ARGS:

None

Source code in kpf/spectrograph/ResetDetectors.py
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class RecoverDetectors(KPFTranslatorFunction):
    '''Try to examine the state of all detectors an run the appropriate recovery

    ARGS:
    =====
    None
    '''
    @classmethod
    def pre_condition(cls, args, logger, cfg):
        pass

    @classmethod
    def perform(cls, args, logger, cfg):
        log.warning('Attempting a detector recovery')
        timeout = cfg.getfloat('times', 'kpfexpose_reset_time', fallback=10)
        kpfmon = ktl.cache('kpfmon')
        camera_status = kpfmon['CAMSTATESTA'].read()
        if camera_status == 'OK':
            log.warning('No camera error state detected by kpfmon')
            explainnr = ktl.cache('kpfexpose', 'EXPLAINNR')
            explainnr_str = explainnr.read()
            if explainnr_str.find('hk:') >= 0:
                log.warning('kpfexpose.EXPLAINNR contains hk')
                ResetCaHKDetector.execute({})
        elif camera_status == 'ERROR':
            if kpfmon['G_STATESTA'].read() == 'ERROR':
                ResetGreenDetector.execute({})
            if kpfmon['R_STATESTA'].read() == 'ERROR':
                ResetRedDetector.execute({})
            if kpfmon['H_STATESTA'].read() == 'ERROR':
                ResetCaHKDetector.execute({})
            if kpfmon['E_STATESTA'].read() == 'ERROR':
                ResetExpMeterDetector.execute({})
        else:
            log.warning(f'kpfmon.CAMSTATESTA={camera_status}. No action taken.')

    @classmethod
    def post_condition(cls, args, logger, cfg):
        timeout = cfg.getfloat('times', 'kpfexpose_reset_time', fallback=10)
        log.debug(f'Waiting {timeout:.1f} s for EXPOSE to be Readout or Ready')
        expr = f"($kpfexpose.EXPOSE == 'Ready') or ($kpfexpose.EXPOSE == 'Readout')"
        log.warning(f"Waiting for kpfexpose to be Ready or Readout")
        success = ktl.waitFor(expr, timeout=timeout)
        if success is not True:
            kpfexposeexpose = ktl.cache('kpfexpose', 'EXPOSE')
            raise FailedToReachDestination(kpfexposeexpose.read(), 'Ready or Readout')
        else:
            kpfexpose = ktl.cache('kpfexpose')
            log.info(f"Reset detectors done")
            log.info(f"kpfexpose.EXPOSE = {kpfexpose['EXPOSE'].read()}")
            log.info(f"kpfexpose.EXPLAINR = {kpfexpose['EXPLAINR'].read()}")
            log.info(f"kpfexpose.EXPLAINNR = {kpfexpose['EXPLAINNR'].read()}")