Robert, Christina, Dave
Robert and Christina reported some corner station PEM channels with ADC values of zero. I power cycled the h1oaf0 front end computer and its IO Chassis and these channels are now non-zero.
Sequence was:
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stop user models
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remove h1oaf0 from dolphin
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type "power off" command, but computer decided to reboot instead (sigh)
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stop user models
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remove h1oaf0 from dolphin (deja vue)
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Press the front panel power switch on the CPU
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power down the IO Chassis using its front panel switch (it worked)
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power up the IO Chassis, wait for timing slave to sync
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power up the CPU using the front panel switch