KROHNE OPTISONIC V6 Modbus - Manual (Page 24)

2011-07-19
OPTISONIC_V6_Modbus_6.doc 24/29
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Parameter / Variable
(short description)
Name Explanation
Relative
address
Absolute
address,
non-
Modicon
Absolute
address,
Modicon-
comp.
Units
Reserved Reserved Reserved 40-42
7040-7042
(3 regs)
7080-7085
(6 regs)
-
Statistics / diagnostics variables
Averages and standard deviations are calculated for a number of flow variables. The number of measurement values that are included in this calculation are
specified by means of a preset parameter. Averages and standard deviations are evaluated and updated each time a number of measurements equal to this
parameter has been collected. Collecting data for a new block of data to be evaluated then starts again from there.
As an exception to the rule above, for the flow standard deviation tau, the preset number of measurement values is evaluated every time a new measurement value
becomes available. The series of measurements values then contains the most recent values and shifts with each acquired sample (measurement data), like a
running average.
Parameter / Variable
(short description)
Name Explanation
Relative
address
Absolute
address,
non-
Modicon
Absolute
address,
Modicon-
comp.
Units
Channel reliability, channel 1-
3
Ch_Reliab Reliability per channel; array with values for channel 1 through 3 43-44
7043-7045
(3 regs)
7086-7091
(6 regs)
%
Reserved Reserved Reserved 46-48
7046-7048
(3 regs)
7092-7097
(6 regs)
-
Channel velocity, average,
channel 1-3
Ch_AV_Velocity
Average gas velocity, as observed on each channel; array with
values for channel 1 through 3.
49-51
7049-7051
(3 regs)
7098-7103
(6 regs)
m/s
Reserved Reserved Reserved 52-54
7052-7054
(3 regs)
7104-7109
(6 regs)
-
Channel SoS, average,
channel 1-3
Ch_AV_SoS
Average speed-of-sound, as observed on each channel; array
with values for channel 1 through 3.
55-57
7055-7057
(3 regs)
7110-7115
(6 regs)
m/s
Reserved Reserved Reserved 58-60
7058-7060
(3 regs)
7116-7121
(6 regs)
-
SoS Average AV_SoS Speed of Sound value, average. 61 7061
7122-7123
(2 regs)
m/s