Appendix A.7. Bacnet State Text Preload; Appendix A.7.A.7.1.. Method A.7.1. - Using An Offset/User Table - FieldServer FS-8704-06 Driver Manual

FS-8704-06 BACnet IP Driver Manual

Appendix A.7. BACnet State Text Preload

BACnet Multistate Objects have a State_Text property. This property is defined as an array of character strings representing descriptions of all possible states
of the Present_Value. The number of descriptions matches the number of states defined in the Number_Of_States property. The Present_Value, interpreted as
an integer, serves as an index into the array.
When Multistate Objects are configured on a BACnet server it is necessary to define the State_Text property. This section illustrates how to define the
State_Text character strings and how to associate these definitions with Multistate Server Map Descriptors.
The maximum permitted length of any State_Text string is 50 characters.
Appendix A.7.1. Method 1 – Using an Offset/User Table:
//set up a look up table
Offset_Table
Offset_Table_Name , Table_String
FIRE_ALRM_TEXT , SYSTEM READY
FIRE_ALRM_TEXT , ALARM
FIRE_ALRM_TEXT , MAINTENANCE
FIRE_ALRM_TEXT , OFF-LINE
FIRE_ALRM_TEXT , IN SERVICE
FIRE_ALRM_TEXT , OTHER
Data_Arrays
Data_Array_Name , Data_Format
DA_MI_01 , UINT16
Map_Descriptors
Map_Descriptor_Name , Data_Array_Name
CMD_MI_01 , DA_MI_01
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, Table_Index_Value
, 1
, 2
, 3
, 4
, 5
, 6
, Data_Array_Length
, 100
, Data_Array_Offset , Function
, 0 , Passive
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Valid values are 1
to 16.
, Node_Name , Object_Type , Object_Instance
, N1 11 , MI , 1
, Length , State_Text_Array
, 1 , Fire_Alrm_Text