6-8
Reporting and Alarm Functions
BE1-951
Setting Demand Reporting
Demand reporting is setup using the SG-DI (setting general, demand interval) command. Demand reporting
settings are summarized in Table 6-4.
Table 6-4. Demand Settings
Setting
Range
Increment
Unit of
Measure
Default
Interval
Phase Demand Interval
0 to 60
1
Minutes
15
Neutral Demand Interval
0 to 60
1
Minutes
1
Negative Sequence
Demand Interval
0 to 60
1
Minutes
1
SG-DI Command
Purpose:
Read or set the Phase (IA/IB/IC/VAR/WATT), Neutral, and Negative Sequence interval.
Syntax:
SG-DI<x>[=<Interval>]
Comments:
x = P for Phase, N for Neutral, and Q for Negative Sequence.
SG-DI Command Example
1.
Set the Neutral demand interval for five minutes.
>SG-DIN=5
Retrieving Demand Reporting Information
Values and time stamps in the demand registers are reported in primary values. They can be read at the
front panel HMI and through the communication ports.
Today’s Peak, Yesterday’s Peak, and Peak Since Reset demand values are accessed through HMI screen
4.4, DEMAND REPORTS. Demand values viewed at the HMI can be reset by pressing the Reset key.
When the Reset key is pressed, the viewed register value is set to zero and then updated on the next
processing loop with the currently calculated demand value. No write access is needed to reset demand
register values at the HMI. Its also possible to preset a value into the Peak Since Demand registers. This
can be done by pressing the Edit key. Write access to the Reports functional area is required to preset
values at the HMI.
Values and time stamps in the demand registers can also be read through the communication ports by using
the RD (report demands) command.
RD Command
Purpose:
Report all demand data.
Syntax:
RD
Comments:
RD reports Today’s Peak, Yesterday’s Peak, and Peak Since Reset demand data for all
Phase current, Neutral current, Negative Sequence current, three-phase reactive power,
and three-phase power. Vars are expressed as lagging values (+) or leading values (–).
Peak var (RD-TVAR, RD-YVAR, and RD-PVAR) values and peak watt (RD-TWATT, RD-
YWATT, and RD-PWATT) values are reported as two parameters. The first value is the
peak positive demand; the second value is the peak negative demand.
RD Command Example
1.
Read all demand register data.
>RD
RD-TIA:0.00A 01:21 01/01/99; RD-TIB:0.00A 01:21 01/01/99
RD-TIC:0.00A 01:21 01/01/99; RD-TIN:0.00A 01:21 01/01/99
RD-TIQ:0.02A 00:07 01/01/99
RD-TVAR= 0.00KVAR 01:21 01/01/99, 0.00KVAR 00:00 01/01/99
RD-TWATT= 0.00KW 01:21 01/01/99, 0.00KW 00:00 01/01/99