93
Month TOU or Prior Month TOU.User can set the time in the following format
:DD HH:MM:SS"-DD stands for day,HH stands for hour,MM stands for minute,SS
stands for second.Similar to the previous method,once Current Accumulation
Month TOU is transferred to Prior Accumulation Month TOU,Current Accumula-
tion Month TOU will continue to accumulate.once Current Month TOU is trans-
ferred to Prior Month TOU,Current Month TOU will be cleared and reset to 0.
4.7 Power Quality Event Logging and Waveform Capture
Power Quality Event Logging
When a power quality event happens, such as voltage sag and swell, Acuvim IIW
will record the event timestamp and the triggering condition. It can save up to
50,000 events.
1. Event Logging Data format
Timestamp (4 words) + Triggering Condition (1 word) + Rated Value (1 word) +
Threshold (1 word) + Half Cycle Count (1 word)
Each event has 8 words in total.
Event Time: W1: Year—High Byte; Month-Low Byte; W2:Day-High Byte, Hour—
Low Byte; W3:Minute—High Byte; Second—Low Byte; W4: Millisecond
Triggering Condition: W5—Voltage Sags or Voltage Swells 0: logging disabled;
Bit0: 1 – u1 voltage sag, 0 – no u1 voltage sag;
Bit1: 1 – u2 voltage sag, 0 – no u2 voltage sag;
Bit2: 1 – u3 voltage sag, 0 – no u3 voltage sag;
Bit3: 1 – u1 voltage swell, 0 –u1 no voltage swell;
Bit4: 1 – u2 voltage swell, 0 –u2 no voltage swell;
Bit5: 1 – u3 voltage swell, 0 –u3 no voltage swell;
Rated Value: W6—Voltage rated value;