Maxim Integrated 71M6513H Power Meter IC Family Software - Manual (Page 78)

71M651x Software User’s Guide
XRAM
Address
Name Description
0x2F Wh Total Watt hours consumed (imported)
0x31 Whe Total Watt hours generated (exported)
0x33 VARh Total VAR hours consumed
0x35 VARhe Total VAR hours generated (inverse consumed)
0x37 VAh Total VA hours
0x39 Wh_A Total Watt hours consumed through element 0
0x3B Whe_A Total Watt hours generated (inverse consumed) through element 0
0x3D VARh_A Total VAR hours consumed through element 0
0x3F VARhe_A Total VAR hours generated (inverse consumed) through element 0
0x41 VAh_A Total VA hours in element 0
0x43 Wh_B Total Watt hours consumed through element 1
0x45 Whe_B Total Watt hours generated (inverse consumed) through element 1
0x47 VARh_B Total VAR hours consumed through element 1
0x49 VARhe_B Total VAR hours generated (inverse consumed) through element 1
0x4B VAh_B Total VA hours in element 1
0x4D Wh_C Total Watt hours consumed through element 2
0x4F Whe_C Total Watt hours generated (inverse consumed) through element 2
0x51 VARh_C Total VAR hours consumed through element 2
0x53 VARhe_C Total VAR hours generated (inverse consumed) through element 2
0x55 VAh_C Total VA hours in element 2
Table 5-10: MPU Accumulation Output Variables (6513)
MPU VARIABLES INDEPENDENTLY CONTROLLING THE SECOND CURRENT CHANNEL
The 6511 Demo Code revision 3.05 offers independent scaling and creep suppression parameters for the second
current channel (phase B). This is useful for meter configurations where different sensors are used for the primary and
secondary channel. An example for this configuration would be a meter using a CT for phase A and an additional re-
sistive shunt for phase B to counter tampering. In most cases, the input voltage at the IA and IB inputs generated by
the current flowing through both sensors will not be identical due to the differing characteristics of the sensors. In
order to enable comparative measurements and true application of tariffs, Demo Code 6511 revision 3.05 offers a set
of variables used to scale the IB channel (phase B).
The variables added in 6511 Demo Code revision 3.05 are shown in Table 5-11.
Revision 2.4 TERIDIAN Proprietary 78 of 137
© Copyright 2005-2006 TERIDIAN Semiconductor Corporation