YSI IQ S ENSOR N ET Field bus linking - Manual (Page 30)

Communication with field buses IQ S ENSOR N ET Field bus linking
28 ba76148e01 06/2013
Response with sensor
data block of the
sensors S02
Modbus response
Byte Value Information Meaning of the value
1 01h Modbus address of the
IQ S
ENSOR N ET
01h --> 1
2 04h Function 04h --> 4
Read Input Register
3 10h Number of bytes 10h --> 16
16 Byte (8 registers)
4 02h Contents of register 9 (HI)
= sensor number 02h (Int 8) --> 2
Sensor number S02
5 02h Contents of register 9 (LO)
= sensor status 02h (Int 8) -->
MEASURE
see section 5.2
6 04h Contents of register 10 (HI)
= sensor model 0401h (Int 16)
--> VisoTurb 700 IQ
see section 5.3
7 01h Contents of register 10 (LO)
= sensor model
8 00h Contents of register 11 (HI)
= status info 0000h (Int 16)
--> no errors
see section 5.4
9 00h Contents of register 11 (LO)
= status info
10 00h Contents of register 12 (HI)
= measuring mode 00h (Int 8) --> FNU
Turb
see section 5.5
11 14h Contents of register 12 (LO)
= measured value status 14h (Int 8)
Main measured value
(bits 7-4):
1h --> VALID
Secondary measured
value (bits 3-0):
4h --> MISSING
see section 5.6