Liquistation CSF22 MODBUS
®
-Guideline
Hauser
© Copyright Dez. 2011
23
7.1.5.
Other data types
Other data types with a data length of more than 2 bytes are treated like strings.
7.2.
Unit codes and data sources
The process values are transmitted in standard units.
For some process values using the standard unit code would result in a small numeric value. Therefore these units
are automatically converted into compatible units.
Dez
Hex
Unit
0
00
No unit
7
07
%
11
0B
1/m
25
19
mA
33
21
FNU
43
2B
m
47
2F
mg/l
53
35
pH
59
3B
hPa
66
42
MΩ
68
44
rH
72
48
mS/cm
82
52
Ω*m
89
59
°C
95
5F
s
110
6E
mV
Hint:
Differing units at the local display are converted by the device automatically to the corresponding Modbus unit and
transferred with the converted related process value.
7.3.
Parameter
7.3.1.
Process values (Holding Register: FC 03, 16, 23)
Register
Name Parameter
Data Type
Bytes
Access
Unit
Description
0
MODBUS_AI_1_VALUE
FLOAT
4
read only
None
Up to 16 process values can be
configured to modbus device
variables. The values are transferred
with status and unit.
VALUE: Floating point acc. IEEE-
754
STATUS:
UNIT:
2
MODBUS_AI_1_STATUS
UNSIGNED8
1
read only
None
3
MODBUS_AI_1_UNIT
UNSIGNED8
1
read only
None
4
MODBUS_AI_2_VALUE
FLOAT
4
read only
None
6
MODBUS_AI_2_STATUS
UNSIGNED8
1
read only
None
7
MODBUS_AI_2_UNIT
UNSIGNED8
1
read only
None
8
MODBUS_AI_3_VALUE
FLOAT
4
read only
None
10
MODBUS_AI_3_STATUS
UNSIGNED8
1
read only
None
11
MODBUS_AI_3_UNIT
UNSIGNED8
1
read only
None
12
MODBUS_AI_4_VALUE
FLOAT
4
read only
None