ResetExpMeterDetector

Bases: KPFTranslatorFunction

Resets the exposure meter detector

ARGS:

None

Source code in kpf/spectrograph/ResetDetectors.py
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class ResetExpMeterDetector(KPFTranslatorFunction):
    '''Resets the exposure meter detector

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

    @classmethod
    def perform(cls, args, logger, cfg):
        expose = ktl.cache('kpf_expmeter', 'EXPOSE')
        log.warning(f"Resetting: kpf_expmeter.EXPOSE = abort")
        expose.write('Reset')
        log.debug('Reset command sent')

    @classmethod
    def post_condition(cls, args, logger, cfg):
        expstate = ktl.cache('kpf_expmeter', 'EXPSTATE')
        timeout = cfg.getfloat('times', 'kpfexpose_reset_time', fallback=10)
        log.warning(f"Waiting for kpf_expmeter to be Ready")
        success = expstate.waitFor('=="Ready"', timeout=timeout)
        if success is not True:
            raise FailedToReachDestination(expstate.read(), 'Ready')