KRAL BEM 100 - Automatically Updated Parameters; Parameters for Configuration

5 Function description
5.2 Modbus communication
5.2.5 Automatically updated parameters
These parameters are automatically updated by the processing unit 16 times per second, meaning that
the updating interval for the Modbus data amounts to62.5ms.
Name Description Address Type Length DEC
Alarm_Read Error message 0x14 U32 2 10
0
Hold_Timer Sets the processing unit to Hold mode
for xms
0x16 U16 1 10
0
Total_Volume_2 Total value since last reset[l] 0x18 I64 4 10
3
Avg_Flow_Rate Average flow rate [l/h] 0x1C I32 2 10
2
Temperature Current temperature of the pumped
liquid[°C]
0x1E I16 1 10
1
Flow_Dir_Change Counter for direction change 0x1F U16 1 10
0
Tab.13: Automatically updated parameters
5.2.6 Parameters for configuration
These parameters are written by the user. They control the internal calculations of the processing unit.
Name Description Address Type Length DEC Value range
Modbus_baud_rate Modbus serial baud rate 0x30 U32 2 10
0
9600, 19200, 38400,
56400, 115200
Flow_rate_max Maximum flow rate [l/h] 0x32 U32 2 10
2
–
Flow_zero_threshold Threshold for flow rate 0.
When the value drops below this limit, the para-
meter "Avg_Flow_Rate" = 0 is set
0x34 U32 2 10
2
–
X_Temperature Value for temperature compensation [°C] 0x36 I16 1 10
1
-40.0 ... +200.0
Avg_Flow_Nb_
Samples
Number of measure samples for averaging 0x37 U16 1 10
0
–
Flow_Metering_Mode Revaluation mode:
0 = Volume at X °C
1 = Volume without temperature compensation
2 = Volume as mass [kg]
0x38 U16 1 10
0
0, 1, 2
Pulse_Type Mode of pulse input
0 = Encoder
1 = Counter
0x39 U16 1 10
0
0, 1
Density_Determina-
tion
Mode of density determination:
0 = Automatic selection of the density table +
manual input of the density values
1 = Selection of Density table 1 + manual input of
the density values
2 = Selection of Density table 2 + manual input of
the density values
3 = Automatic selection of density calculation for
diesel or heavy fuel oil
4 = Density calculation for diesel
5 = Density calculation for heavy fuel oil
0x3A U16 1 10
0
0, 1, 2, 3, 4, 5
Temperature_Switch Switching temperature ("Density_Determination" =
0 or 3):
o Temperature < "Temperature_Switch":
Selection of Density table 1
o Temperature ≥ "Temperature_Switch":
Selection of Density table 2
0x3B I16 1 10
1
-40.0 ... +200.0
Density_Reference_1 Density of diesel at 15°C [kg/m
3
]
(Density_Determination = 3, 4 or 5)
0x3C U32 2 10
1
0.1 ... 80000.0
Operating instructions
OIE 26en-GB Edition 2021-08
9