YSI DIQ/S 182 XT-4-MOD User Manual

Page 128

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Modbus connection

System 182 XT-4

7 - 12

ba76028e01

02/2012

Response with all sensor information of the sensor S02:

Modbus response

Byte

Valu
e

Information

Meaning of the value

1

01h

Modbus address of the DIQ/
S 182 XT-4-MOD

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

6

04h

Contents of register 10 (HI)
= sensor model

0401h (Int 16)
--> VisoTurb 700 IQ

7

01h

Contents of register 10 (LO)
= sensor model

8

00h

Contents of register 11 (HI)
= status info

0000h (Int 16)
--> no errors

9

00h

Contents of register 11 (LO)
= status info

10

00h

Contents of register 12 (HI)
= measuring mode

00h (Int 8) --> FNU Turb

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

12

42h

Contents of register 13 (HI)
= main measured value

429E46C2h (Float 32)
--> 79,1382
Measured parameter and unit,
see byte 10 (measuring mode)

13

9Eh

Contents of register 13 (LO)
= main measured value

14

46h

Contents of register 14 (HI)
= main measured value

15

C2h

Contents of register 14 (LO)
= main measured value

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