KROHNE MFC 300 Modbus - Manual (Page 12)

6
MODBUS PROTOCOL
12
MFC 300
www.krohne.com 11/2009 - 4000744801 - AD Modbus MFC 300 R01 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. The type are one or more float values.
Function code is 04 (0x04).
Modbus protocol
address Description and settings Type Number of registers
30000 Flow Velocity Flow Velocity Flow Velocity Flow Velocity [m/s] float 2
30002 Volume Flow Volume Flow Volume Flow Volume Flow [m 3 /s] float 2
30004 Mass Flow Mass Flow Mass Flow Mass Flow [kg/s] float 2
30006 Temperature Temperature Temperature Temperature [K] float 2
30008 Density Density Density Density [kg/m 3 ] float 2
30010 Concentration 1 Concentration 1 Concentration 1 Concentration 1 float 2
30012 Concentration 2 or Diagnosis 3 Concentration 2 or Diagnosis 3 Concentration 2 or Diagnosis 3 Concentration 2 or Diagnosis 3 float 2
30014 Concentration Flow 1 Concentration Flow 1 Concentration Flow 1 Concentration Flow 1 float 2
30016 Concentration Flow 2 Concentration Flow 2 Concentration Flow 2 Concentration Flow 2 float 2
30018 Diagnosis 1 Diagnosis 1 Diagnosis 1 Diagnosis 1 float 2
30020 Diagnosis 2 Diagnosis 2 Diagnosis 2 Diagnosis 2 float 2
30022 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
30024 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
30026 Operating time Operating time Operating time Operating time [s] float 2
30050 Counter 1 Counter 1 Counter 1 Counter 1 [m 3 ] or [kg] double float 4
30054 Counter 2 Counter 2 Counter 2 Counter 2 [m 3 ] or [kg] double float 4
30058 Counter 3 Counter 3 Counter 3 Counter 3 [m 3 ] or [kg]
Note: this counter is only available for
converter with IO2!
double float 4
30062 Long Status Sensor Long Status Sensor Long Status Sensor Long Status Sensor byte [4] 2
30064 Long Status Device Long Status Device Long Status Device Long Status Device byte [4] 2
.book Page 12 Tuesday, November 24, 2009 1:48 PM