Kernel Start Day of Week. Day of the Week the SCADA Node started.
Discrete Tag: 7 states.
State 0: Sun.
State 1: Mon.
State 2: Tue.
State 3: Wed.
State 4: Thr.
State 5: Fri.
State 6: Sat.
See also STM_Day, STM_Year, STM_Mon, STM_Hour, STM_Min and STM_Sec.