Maxim Integrated 71M6534 Energy Meter IC Family Software - Manual (Page 49)

71M653X Software User’s Guide
Code
Size
1
φ
3
φ Description Feature
VARh export
register 0.4KB Y Y
VARh export
pulse output 0.25KB Y Y
Operating hours
register 0.36KB Y Y “99999.9” Nonvolatile count of hundredths of hours
of powered operation since first cold start.
RTC time register 0.18KB Y Y
RTC date register 0.21KB Y Y
Pulse source
selection 0.4KB Y Y This is the ability to route most calculated energy
values to a pulse output.
Dual IMAX
registers 0.2KB Y N IMAX2 adjusts current, Wh and VARh from channel B
to same units as A. Creep thresholds are required,
but need not be adjusted when IMAX2 changes.
Neutral Current 0.3KB N Y This includes not just a measurement, but also a limit,
and a count of overcurrent events.
RMS current
register 0.2KB Y Y Implemented for all phases “000.000” Includes
element currents, arithmetic sum of currents and (if
supported) neutral current.
RMS voltage
register 0.2KB Y Y Implemented for all elements “000.000”
Power factor
register 0.3KB Y Y All phases are displayed with sign. Volatile.
Pulse count 1.2KB Y Y Both the Wh and VARh pulses are counted.
Mains edge count 0.3KB Y Y Counts total zero crossings, and zero crossings in the
last accumulation interval, of element A.
Table 5-6: Power Registers and Pulse Output Features
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