KROHNE GFC 300 Modbus - Manual (Page 13)

MODBUS PROTOCOL
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GFC 300
www.krohne.com 03/2012 - 7312402100 - AD Modbus GFC 300 R01 en
Modbus protocol
address Description and settings Type Number of registers
1st 2nd
30000 0 Volume flow float 2
30002 2 Corrected volume flow (gas only) float 2
Enthalpy flow (steam only)
30004 4 Mass flow float 2
30006 6 Molar mass (gas only) float 2
Specific enthalpy (steam only)
30008 8 Not used, returns zero (gas only) float 2
Density (steam only)
30010 10 Flow speed float 2
30012 12 Velocity of sound float 2
30014 14 Gain float 2
30016 16 Diagnostics 1
value 2436.32
1 = none
2 = velocity of sound 1
3 = gain 1
4 = SNR 1
float 2
30018 18 Diagnostics 2
value 2437.32
1 = none
2 = velocity of sound 2
3 = gain 2
4 = SNR 2
float 2
30020 20 Diagnostics 3
value 2438.32
1 = none
2 = velocity of sound 3
3 = gain 3
4 = SNR 3
float 2
30022 22 Temperature of the medium
(only with appropriate Current Input)
float 2
30024 24 Pressure of the medium
(only with appropriate Current Input)
float 2
30026 26 Operating time float 2
30028 28 counter 1 double float 4
30032 32 Counter 2 double float 4
30036 36 Counter 3 (IO2 only) double float 4
30040 40 Long status sensor byte [4] 2
30042 42 Long status device byte [4] 2