MAXQ3180-RAN+ datasheet(32/48 Pages) MAXIM

32 / 48 page

Virtual Registers

Some register values are not stored in RAM, but instead

are calculated at the master’s request when needed.

These registers, which include power (kW), voltage (V),

and current (A) values, can be read by the master

through the virtual registers listed in Table 5. The

addresses of all virtual registers have the most signifi-

cant bit (bit 11) set to 1. All virtual registers are read only.

Low-Power, Multifunction, Polyphase AFE

______________________________________________________________________________________

Table 4. RAM Register Summary (continued)

NAME

ADDRESS

(BYTE)

DESCRIPTION

R/W

DEFAULT

VALUE

(HEX)

BITS

NAME

DESCRIPTION

PHASE_C_

ACT

894

Raw Active

Energy

—

31:0

Per most recent line cycle.

Full-scale = 218 x NS

PHASE_C_

REA

898

Raw Reactive

Energy

—

31:0

Per most recent line cycle.

Full-scale = 218 x NS

PHASE_C_

APP

902

Raw Apparent

Energy

—

31:0

Per most recent line cycle.

Full-scale = 218 x NS

RESERVED

906–943

—

NEUTRAL_

KWHIH

944

Amp-Hours

—

15:0

Accumulated amp-hours. Units

defined by KAHT setting.

NEUTRAL_I

_GAIN

946

Current Gain

Coefficient

R/W

0x0000

15:0

Signed two’s complement;

Used to correct IRMS:

Y = X x (1 + gain/216)

NEUTRAL_

EOVFL

948

Energy Overflow

Flags

R/W

0x0000

IHOF

KWHIH overflow

RESERVED

950–995

—

NEUTRAL_

IRMS

996

Raw RMS

Current

—

31:0

Per most recent line-cycle.

Full-scale = 230

NEUTRAL_

1000

Raw Amp-Hours

—

31:0

Per most recent line cycle.

Full-scale = 214 x NS

RESERVED

1004–1023

—

Table 5. Virtual Registers

NAME

ADDRESS

DESCRIPTION

DATA LENGTH

(BYTES)

PWRP.A

0x801

Phase A Active Power. Units defined by PWR_FS setting.

PWRP.B

0x802

Phase B Active Power. Units defined by PWR_FS setting.

PWRP.C

0x804

Phase C Active Power. Units defined by PWR_FS setting.

PWRP.T

0x807

Total A + B + C Active Power. Units defined by PWR_FS setting.

PWRQ.A

0x811

Phase A Reactive Power. Units defined by PWR_FS setting.

PWRQ.B

0x812

Phase B Reactive Power. Units defined by PWR_FS setting.

PWRQ.C

0x814

Phase C Reactive Power. Units defined by PWR_FS setting.

PWRQ.T

0x817

Total A + B + C Reactive Power. Units defined by PWR_FS setting.

PWRS.A

0x821

Phase A Apparent Power. Units defined by PWR_FS setting.

PWRS.B

0x822

Phase B Apparent Power. Units defined by PWR_FS setting.

MAXQ3180-RAN+ датащи(PDF) 32 Page - Maxim Integrated Products

MAXQ3180-RAN+ датащи(HTML) 32 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

датащи скачать

ссылки URL