Contemporary Control Systems BACnet Cube I/O BMT-AI8 - Manual (Page 4)

Continuation Software Description
Measurement Ranges
State State_Text Units of Analog Input
1 default „0-10V %“ percent (98)
2 „0-10V % P“ percent (98)
3 „0-10 Volt“ volts (5)
4 „0-10 Volt P“ volts (5)
5 „Ohm“ ohms (4)
6 „User Defined“ set in Analog Value Object X1…X10
7 „PT100“ degrees-Celsius (62)
8 „PT500“ degrees-Celsius (62)
9 „PT1000“ degrees-Celsius (62)
10 „NI1000-TC5000“ degrees-Celsius (62)
11 „NI1000-TC6180“ degrees-Celsius (62)
12 „BALCO500“ degrees-Celsius (62)
13 „KTY81_110“ degrees-Celsius (62)
14 „KTY81_210“ degrees-Celsius (62)
15 „NTC1k8-T“ degrees-Celsius (62)
16 „NTC5k-T“ degrees-Celsius (62)
17 „NTC10k-T“ degrees-Celsius (62)
18 „NTC20k-T“ degrees-Celsius (62)
19 „LM235Z“ degrees-Celsius (62)
Analog Value Object 1…20
Property Remark / Value RW
Object_Identifier analog-value, instance 1 … 20 R
Object_Type ANALOG_VALUE (2) R
Object_Name max. 42 Bytes, default “X 1”, “Y 1” … “X 10”, “Y 10” RW-E
Description max. 84 Bytes, default “” RW-E
Present_Value Interpolation Table in User Defined Measurement Range RW-E
Status_Flags
IN_ALARM: 0
FAULT: 0
OVERRIDDEN: 0
OUT_OF_SERVICE: 0
R
Event_State NORMAL (0) R
Out_Of_Service FALSE (0) R
Units
X1…X10: Units of Analog Input Object (default °C) RW-E
Y1…Y10: Defined in Multistate Value 9 R
R: Read Property, W: Write Property, -E: Storage in EEPROM / Flash
Interpolation Table
Instance Name Default Value Instance Name Default Value
1 “X 1” -10.0 2 “Y 1” 960.86
3 “X 2” 10.0 4 “Y 2” 1039.03
5 “X 3” 30.0 6 “Y 3” 1116.73
7 “X 4” 50.0 8 “Y 4” 1193.97
9 “X 5” 70.0 10 “Y 5” 1270.75
11 “X 6” 0.0 12 “Y 6” 0.0
13 “X 7” 0.0 14 “Y 7” 0.0
15 “X 8” 0.0 16 “Y 8” 0.0
17 “X 9” 0.0 18 “Y 9” 0.0
19 “X 10” 0.0 20 “Y 10” 0.0
The Interpolation Table by default provides an example for PT1000 Temperature Sensors. In the example X values are Temperature in °C, Y values
are Resistance in Ohms. X and Y values must be sorted in ascending or descending order. The table ends where both values are 0.0. Measurement
Range at Input must be selected in Multistate Value 9.
Continuation Software Description
Multistate Value Object 9
Property Remark / Value RW
Object_Identifier multistate-value, instance 9 R
Object_Type MULTISTATE_VALUE (19) R
Object_Name max. 42 Bytes, default “User Defined Range” RW-E
Description max. 84 Bytes, default “” RW-E
Present_Value
Selection of Measurement Range at Input
Voltage (Volt)
Voltage, Pullup Resistor 2kOhm to 5V (Volt P)
Resistance (Ohm)
and Usage of Interpolation Table
approximately linear sensor (e.g. PT1000)
approximately exponential sensor (e.g. NTC)
default 3, for PT1000 example
RW-E
Status_Flags
IN_ALARM: 0
FAULT: 0
OVERRIDDEN: 0
OUT_OF_SERVICE: 0
R
Event_State NORMAL (0) R
Out_Of_Service FALSE (0) R
Number_Of_States 6 R
State_Text max. 20 Bytes, default see next Table RW-E
R: Read Property, W: Write Property, -E: Storage in EEPROM / Flash
User Defined Range
State State_Text Units of Analog Values Y
1 „Volt lin“ volts (5)
2 „Volt P lin“ volts (5)
3 „Ohm lin“ ohms (4)
4 „Volt exp“ volts (5)
5 „Volt P exp“ volts (5)
6 „Ohm NTC exp“ ohms (4)
Group Object 1…3
Property Remark / Value RW
Object_Identifier group, instance 1 … 3 R
Object_Type GROUP (11) R
Object_Name max. 42 Bytes, default “Group 1” … “Group 3” RW-E
Description max. 84 Bytes, default “” RW-E
Present_Value
Present_Value of Analog Inputs,
see next Table
R
List_Of_Group_Members see next Table R
R: Read Property, W: Write Property, -E: Storage in EEPROM / Flash
Members of Groups
Group
Analog Input
1
2 3 4 5 6 7 8
1 x x x x x x x x
2 x x x x
3 x x x x
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