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entity ErrorMonitor4x4bitError Monitor for 4 x 4 bits. |
The error monitor monitors up to four bits for four muons. An error status register indicates whether any of the bits were set since the status register was last read. Reading the status register clears the error bits. The status register contains in its lowest four bits the error flags of of muon 0, in the next four bits the error flags of muon 1 and so forth.
The number of events with an error bit set is separately counted for each bit over the period of an orbit. The counters are automatically cleared at each bc_reset. This means that the value read corresponds to the orbit just before the VME read.