I modified the control package of SIS3801. Now the ring buffer and the scaler itself are reading out with different frequency. For scaler counts, I temporary set it to read out every 1000 events. For ring buffer, since the data of Lumi will directly go into HAPPEX DAQ, I reserved 8 channel of data for each unit in the ring ( time stamp, 2 x helicity, 2 x BCM, L1A, 2 x trigger) and the ring will be read out whenever it had 10 units.