YSI IQ S ENSOR N ET Field bus linking User 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