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If data are not coming through, first check that the BLD source is properly selected in the DAQ partition.

A common problem with ebeam BLD is that the L3Energy calculation will not update if the accelerator has changed its beam energy configuration and not yet updated alarm limits on data that goes into the calculation.  This should be evident in the "damageMask" of ebeam BLD.  If so, call ACR.


For LCLS-II DAQ, see L2SI DAQ BLD reception

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