KROHNE IFC 300 Converter Modbus EN - Manual (Page 12)

6
MODBUS PROTOCOL
12
IFC 300
www.krohne.com 07/2010 - 4000410703 - AD Modbus IFC 300 R03 en
6.7 Input registers
Measurement and status values are read only and can be accessed as Modbus "Input Registers".
Also the result of a calibration procedure is accessed by an input register at Modbus Protocol
Address 20000 or 9000. The type are one or more float values.
Function code is 04 (0x04).
1: not available for senor option PF (partly filled)
2: not available for senor option CAP (capacitive)
3: only available for senor option PF (partly filled)
Modbus protocol
address Description and settings Type Number of registers
1st 2nd
30000 0 flow speed flow speed flow speed flow speed [m/s] float 2
30002 2 volume flow volume flow volume flow volume flow [m 3 /s] float 2
30004 4 mass flow mass flow mass flow mass flow [kg/s] (1) float 2
30004 4 level level level level [%] (3) float 2
30006 6 coil temperature coil temperature coil temperature coil temperature [K] float 2
30008 8 conductivity conductivity conductivity conductivity [S/m]
This value may not be measured.
Depending on register (4)2003.
0 = off (not measured)
1 = conductivity [S/m]
2 = cond. + empty pipe (S) [S/m]
3 = cond. + empty pipe (F) [S/m]
4 = cond. + empty pipe (I) [S/m]
For the sensor option PF and CAP this
value is only used for empty pipe
detection.
float 2
30010 10 diagnosis value diagnosis value diagnosis value diagnosis value
This value may not be measured.
Depending on register (4)2011.
25 = off (not measured)
31 = electrode noise [m/s]
28 = flow profile [no unit] (1, 2)
21 = linearity [no unit] (1, 2)
8 = terminal 2 DC [Volt] (2)
9 = terminal 3 DC [Volt] (2)
float 2
30012 12 Display Channel 1 Display Channel 1 Display Channel 1 Display Channel 1
Represents the value on the first line of
the first measurement screen in SI units
float 2
30014 14 Display Channel 2 Display Channel 2 Display Channel 2 Display Channel 2
Represents the value on the first line of
the second measurement screen in SI
units
float 2
30016 16 Operating time Operating time Operating time Operating time [s] float 2
30018 18 Not used, returns zero float 2
30020 20 Counter 1 Counter 1 Counter 1 Counter 1 [m 3 ] or [kg] double float 4
30024 24 Counter 2 Counter 2 Counter 2 Counter 2 [m 3 ] or [kg] double float 4
.book Page 12 Friday, July 9, 2010 10:31 AM