daviteq CAP10, Manual

Page: 32 / 33

PROTOCOL: RS232, 9600, 8, 1, N
AAAA , BBBB , CCC , WW , ZZ , UU , DDDDDDDDDDDDDDDDDDDD , SSSSS , MM , NN
AAAA Filtered output, Part per thousand
BBBB Non-filtered output, Part per thousand
CCC Electronics Temperature, deg C
WW Filter weight w1
ZZ Filter weight w2
UU Filter bypass
DDDDDDDDDDDDDDDDDDDD Diagnostic Code
SSSSS Serial number of sensor
MM Error code
NN Checksum
string = ' 0000,0000,024,30,05,02,09230006809050006616,00300,00,1C ’,0xD,0xA
Example : 0000,0000,024,30,05,02,09230006809050006616,00300,00,
CRC8 : 2 byte
Ending : 2 byte EX : 0xD,0xA
CRC8 : checksum of 53 byte data 0000,0000,024,30,05,02,09230006809050006616,00300,00,
CRC8 cal:
CRC8= data1+data2+.. +data51
CRC8=CRC8 mod 255
CRC8L =CRC8 & 0xF
If (CRC8L <10) CRC8L = CRC8L +’0’ rang [‘0’-‘9’]
Else CRC8L = CRC8L +65 rang [‘A’-‘F’]
PROTOCOL SERIAL FOR CAP10
V1.5
PROTOCOL SERIAL FOR CAP10 V1.5
CONTINUOUS STRING WILL BE TRANSMITTED AS BELOW:
Example for Calculation of Check sum
Number of Data byte: 53 bytes