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71M6543GHT 数据表(PDF) 67 Page - Maxim Integrated Products |
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71M6543GHT 数据表(HTML) 67 Page - Maxim Integrated Products |
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67 / 75 page  Maxim Integrated │ 67 71M6543FT/71M6543HT/ 71M6543GT/71M6543GHT Energy Meter ICs www.maximintegrated.com Table 19. Sag Threshold and Gain Adjustment Registers Table 20. CE Transfer Registers CE ADDRESS NAME DEFAULT DESCRIPTION 0x24 SAG_THR 2.39 x 107 Thevoltagethresholdforsagwarnings.Thedefaultvalueisequivalentto113V peak or 80 VRMS if VMAX = 600VRMS. RMS 9 V2 SAG_THR VMAX 7.8798 10− ⋅ = ⋅⋅ 0x40 GAIN_ADJ0 16384 This register scales the voltage measurement channels VADC8 (VA), VADC9 (VB) ANDVADC10(VC).Thedefaultvalueof16384isequivalenttounitygain(1.000). 0x41 GAIN_ADJ1 16384 This register scales the IADC0-IADC1 current channel for neutral current. The defaultvalueof16384isequivalenttounitygain(1.000). 0x42 GAIN_ADJ2 16384 This register scales the IA current channel for Phase A. The default value of 16384 isequivalenttounitygain(1.000). 0x43 GAIN_ADJ3 16384 This register scales the IB current channel for Phase B. The default value of 16384isequivalenttounitygain(1.000). 0x44 GAIN_ADJ4 16384 This register scales the IC current channel for Phase C. The default value of 16384isequivalenttounitygain(1.000). CE ADDRESS NAME DESCRIPTION 0x84† WSUM_X The signed sum: W0SUM_X+W1SUM_X. Not used for EQU[2:0] = 0 and EQU[2:0] = 1. 0x85 W0SUM_X The sum of Wh samples from each wattmeter element. LSB = 9.4045 x 10-13 x VMAX x IMAX Wh (local) LSB = 1.55124 x 10-12 x VMAX x IMAX Wh (remote) 0x86 W1SUM_X 0x87 W2SUM_X 0x88† VARSUM_X The signed sum: VAR0SUM_X+VAR1SUM_X. Not used for EQU[2:0] = 0 and EQU[2:0] = 1. 0x89 VAR0SUM_X The sum of VARh samples from each wattmeter element. LSB = 9.4045 x 10-13 x VMAX x IMAX VARh (local) LSB = 1.55124 x 10-12 x VMAX x IMAX VARh (remote) 0x8A VAR1SUM_X 0x8B VAR2SUM_X 0x8C I0SQSUM_X Thesumofsquaredcurrentsamplesfromeachelement. LSB = 9.4045 x 10-13 IMAX2 A2h (local) LSB = 2.55872 x 10-12 x IMAX2 A2h (remote) 0x8D I1SQSUM_X 0x8E I2SQSUM_X 0x8F I3SQSUM_X 0x90 V0SQSUM_X Thesumofsquaredvoltagesamplesfromeachelement. LSB= 9.4045 x 10-13 VMAX2 V2h (local) LSB= 9.40448 x 10-13 x VMAX2 V2h (remote) 0x91 V1SQSUM_X 0x92 V2SQSUM_X 0x82 FREQ_X Fundamentalfrequency: 6 32 6 32 2520.6Hz LSB 0.509 10 Hz (for Local) 2 2520.6Hz LSB 0.587 10 Hz (for Remote) 2 − − ≡ ≈⋅ ≡ ≈⋅ 0x83 MAINEDGE_X The number of edge crossings of the selected voltage in the previous accumulation interval. Edge crossings are either direction and are debounced. |
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