SA9103E

sames

7/14

By adapting the "Read/Reset" rate to the line current the accuracy of the measurement

can be achieved down to lowest signal levels.

Read, Reset and Read/Reset of integrator for active energy

FIRST BYTE

DR-00923

8

9

10

11

12

13

14

15

SECOND BYTE

1

0

2

34567

Data on SOUT

From the two bytes of data output by the device, the value for the register may be

derived as shown:

Register value = (first byte * 256) + second byte

The most significant bit of the 16 bit energy register is an indication fo the direction

of the energy flow (0 = positive, 1 = negative)

The register access codes which can be written to the SA9103E via the serial

communications port are shown in the table below:

REGISTER

READ

RESET

READ-RESET

Active

$01

$02

$03

RE S

RE S

D R - 0 09 20

RD /

RE S

ST AR T

BI T

RD

RE S

RD

RD

ST OP

BI T