Note for future work:

I could read the following 12 channels in the first loop:
K1:LSC-POP_PDA3_DC_IN1
K1:LSC-POP_PDA1_DC_IN1
K1:LSC-POP_PDA2_DC_IN1
K1:LSC-POP_PDA1_RF17_Q_IN1
K1:LSC-POP_PDA1_RF17_I_IN1
K1:LSC-POP_PDA1_RF45_Q_IN1
K1:LSC-POP_PDA1_RF45_I_IN1
K1:LSC-POP_PDA2_RF51_Q_IN1
K1:LSC-POP_PDA2_RF51_I_IN1
K1:LSC-POP_PDA2_RF90_Q_IN1
K1:LSC-POP_PDA2_RF90_I_IN1
K1:ASC-POP_QPDA1_DC_SEG1_IN1

I could read the following 12 channels in the second loop:
K1:ASC-POP_QPDA1_DC_SEG2_IN1
K1:ASC-POP_QPDA1_DC_SEG3_IN1
K1:ASC-POP_QPDA1_DC_SEG4_IN1
K1:ASC-POP_QPDA2_DC_SEG1_IN1
K1:ASC-POP_QPDA2_DC_SEG2_IN1
K1:ASC-POP_QPDA2_DC_SEG3_IN1
K1:ASC-POP_QPDA2_DC_SEG4_IN1
K1:ASC-POP_FORWARD_QPDA1_DC_SEG1_IN1
K1:ASC-POP_FORWARD_QPDA1_DC_SEG2_IN1
K1:ASC-POP_FORWARD_QPDA1_DC_SEG3_IN1
K1:ASC-POP_FORWARD_QPDA1_DC_SEG4_IN1
K1:ASC-POP_FORWARD_QPDA2_DC_SEG1_IN1

When I read the following 12 channels in the third loop, the DAQ trouble occurred.
K1:ASC-POP_FORWARD_QPDA2_DC_SEG2_IN1
K1:ASC-POP_FORWARD_QPDA2_DC_SEG3_IN1
K1:ASC-POP_FORWARD_QPDA2_DC_SEG4_IN1
K1:ASC-POP_QPDA1_RF17_Q1_IN1
K1:ASC-POP_QPDA1_RF17_I1_IN1
K1:ASC-POP_QPDA1_RF17_Q2_IN1
K1:ASC-POP_QPDA1_RF17_I2_IN1
K1:ASC-POP_QPDA1_RF17_Q3_IN1
K1:ASC-POP_QPDA1_RF17_I3_IN1
K1:ASC-POP_QPDA1_RF17_Q4_IN1
K1:ASC-POP_QPDA1_RF17_I4_IN1
K1:ASC-POP_QPDA2_RF17_Q1_IN1