IDEC MICRO/I HG4G-CJT22 F-B Series User Manual page 243

Analog Output Object
Present_Value of the Analog Output object can be allocated device addresses and set to the value of those device
addresses. Present_Value is a Float32(F) numeric value. When device addresses are allocated to Present_Value, the
product of Present_Value multiplied by 1/coefficient is stored in the device addresses.
The following diagram illustrates the concept when device addresses are allocated to Present_Value of the Analog
Output object and the BACnet device writes the analog output value.
MICRO/I
BACnet device
BACnet objects
Write value:
20.0
Present_Value:
Priority:
2
Write from BACnet device
Present_Value of the Analog Output object cannot be changed from the MICRO/I.
When reading out Present_Value to device addresses, you must be aware of the data type. Depending on the data
type of the device addresses, the value is stored in the device addresses as follows. Set the data type according to the
value of Present_Value. The data type of Present_Value is set in "Conversion type" on page 3-115 of the "Analog
Output Object".
Data Type
Value within range of 0 to 65,535
UBIN16(W)
Value outside range of 0 to 65,535
Value within range of -32,768 to 32,767
BIN16(I)
Value outside range of -32,768 to 32,767
Value within range of 0 to 4,294,967,295
UBIN32(D)
Value outside range of 0 to 4,294,967,295
Value within range of -2,147,483,648 to 2,147,483,647
BIN32(L)
Value outside range of -2,147,483,648 to 2,147,483,647
Float32(F) —
Device addresses
Reflected
Analog Output
object
#D0000: 1000
20.0
Coefficient: 0.02
Priority_Array
Read out to data register
Present_Value of BACnet Device
WindO/I-NV4 User's Manual
7 BACnet Communication
Digital output module
Physical output
analog output:
CH0: 20 mA
Value of Device Addresses
Present_Value
0
Present_Value
0
Present_Value
0
Present_Value
0
Present_Value
3
External
20 mA
3-137