AMPTRON Ai205 - Page 73

DI1: bit0 DI2: bit1 DI3: bit2 DI4: bit3
Table 4.7 Read Status of DI
addr Fun Byte count Data CRC16 hi CRC16 lo
11H 02H 01H 03H E5H 49H
The content of the data is,
7 6 5 4 3 2 1 0
0 0 0 0 0 0 1 1
MSB LSB
DI1=On DI2=On DI3=Off DI4=Off
3 Read Data (Function Code 03)
Query
This function allows the master to obtain the measurement results of Ai205.
Table4.8 is an example to read the 3 measured data (F, V1 and V2) from slave
68
device number 17, the data address of F is 0130H, V1 is 0131H and V2 is
0132H.
Addr Fun Data start Data start Data #of Data #of CRC16 CRC16
addr hi addr lo regs hi regs lo regs hi regs lo
11H 03H 01H 30H 00H 03H 06H A8H
Table 4.8 Read F,V1,V2 Query Message
Response
The Ai205 response includes the Ai205 address, function code, quantity of
data byte, data, and error checking. An example response to read F, V1 and V2
(F=1388H (50.00Hz), V1=03E7H (99.9V), V2=03E9H (100.1V) is shown as
Table4.9.
Addr Fun Byte Data1 Data1 Data 2 Data2 Data3 Data3 CRC16 CRC16
count hi Lo hi lo hi lo hi lo
11H 03H 06H 13H 88H 03H E7H 03H E9H 7FH 04H
Table4.9 Read F, V1 and V2 Message
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