I set up the H1 ODC master channel: H1:ODC-MASTER_CHANNEL_OUT_DQ The "H1 Interferometer Summary" bit (bit0) now includes the following bits: Bit4: PSL Summary (EPICS timing only) Bit5: IMC Summary Bit 21:ADC overflow (for PSL, EPICS timing only) Bit 22:DAC overflow (for PSL, EPICS timing only) Bit 23:EXC on (for PSL, EPICS timing only) Bit 28:Guardian Observation Ready Bit 29:Operator Science Mode Button The guardian that will be serving bit 28 is not running yet.