Introduction
9
Table 1-1 Measured Quantities and Sensed Signals
Measurement Mode
Usage/output
Parameter
Real-
time
Sliding
average
Demand Min/
Max
Display Commu-
nications
Analog
output
Pulse
Data
logging
Trigger
setpoint
TOU system parameters
Active tariff
•
•
•
Active profile
•
•
•
Pulse counters
8 large scale counters for counting
external pulses or internal events
•
•
•
•
Discrete inputs
8 discrete inputs, free configurable for
sensing external contacts or pulses
•
•
•
•
Timers
4 timers with 1 sec resolution
•
Internal events
kWh pulse (import/export/total)
•
•
kvarh pulse (import/export/total)
•
•
kVAh pulse
•
•
Start demand interval
•
•
Start tariff interval
•
•
Time/date parameters
Year, month, day of month, day of
week, hour, minute, second
•
Special measurements
Voltage disturbance
•
Phase rotation
•
•
Phase angles per phase
•
