Siargo FS8000, User Manual, Page: 11 / 22

11
www.Siargo.com FS800o User Manual
5. I
2
C digital communication descriptions
5.1 I
2
C interface connection diagram
5.2 I
2
C interface command description
Command
Byte
(Hex)
Length
(int 16)
Command Name Read/Write Notes
05H 1 I
2
C address Write
Bit 0 is R/W flag bit; Bit 1~ Bit 7 are
available.
oBH 1 Filter depth Write Int 8, 0~254
1CH 1 Flowrate offset reset Write 1 byte, ensure no-flow conditions
82H 12 Serial number Read ASCII
83H 4 Flow rate Read
Int32(/1000 SLPM)+CRC
CRC=(Byte1)xOR(Byte2)x(OR(Byte3)XOR(byte4)
85H 1 I
2
C address Read Bit 7 ~ Bit 1
8BH 1 Filter depth Read Int 8, 0~254
Note: The I
2
C address is set to Bit 7~Bit 1. E.g. if the I
2
C address is 1 (0000 001x), the write address will be
0x02 (0000 0010) and the read address will be 0x03 (0000 0011).