Chapter 6 Applied Instructions Enable contact M0 M20=OFF, indicating DST function is disabled. D100=K2, indicating DST state is being read. Enable contact M1 Setting values and descriptions: Example 2 Enable DST function and read the DST state. Set the DST to start on 1 st April and to end on 3 rd September and the duration is 60 minutes. 6_ 6-499 D20 X Invalid operand Device Setting Value Description D100 4 Function code is 4, indicating the DST state is OFF. D101 X Invalid operand D102 X Invalid operand D111 X Invalid operand D112 X Invalid operand D120 X Invalid operand M21 OFF Node state is OFF.