SMC Networks FieldServer FS-8700-16 BACnet PTP Driver Manual page 24

Example
Map_Descriptors
Map_Descriptor_Name , Object_Type , Property , Function , Data_Array_Name , Data_Array_Offset , Node_Name , Address , Length , Write_Priority , Linked_Map_Descriptor
CMD WPM , AO , -
Configure an active read or write Map Descriptor and give it a
unique name. This Map Descriptor will be referred to by all other
Map Descriptors forming part of the multiple property transaction.
Map_Descriptor_Name , Object_Type , Property
CMD WPM 1 , AO , -
CMD WPM 2 , AO , -
CMD WPM 3 , Device , Max_Master
CMD WPM 4 , Device , Max_Info_Frames , Passive_Client , DA WPM
CMD WPM 5 , BO , -
// ReadPropertyMultiple
Map_Descriptors
Map_Descriptor_Name , Object_Type , Property , Function , Data_Array_Name , Data_Array_Index , Node_Name , Address , Length , Write_Priority , Linked_Map_Descriptor
CMD RPM , AO , -
Map_Descriptor_Name , Object_Type
CMD RPM 3 , Device
CMD RPM 4 , Device
CMD RPM 2 , AO
CMD RPM 1 , AO
, Address , Length , Write_Priority
, 1 , 1 , -
, 1 , 1 , -
, 8 , 4 , -
, 4 , 3 , -
NOTE:
•
For the Present_Value property it is permissible to set a Map Descriptor length >1. This will cause a read of the Present_Value property of
consecutive BACnet objects of the type defined by this Map Descriptor.
•
The number of properties that can be read or written at once is limited by the maximum APDU message length.
•
Message segmentation is not supported.
, Wrbc , DA WPM
, Function , Data_Array_Name , Data_Array_Offset , Node_Name , Address , Length , Write_Priority , Linked_Map_Descriptor
, Passive_Client , DA WPM
, Passive_Client , DA WPM
, Passive_Client , DA WPM
, Passive_Client , DA BOP
Set the function to Passive_Client.
, Rdbc , DA RPM , 9
, Property , Function
, Max_Master , Passive_Client
, Max_Info_Frames , Passive_Client
, - , Passive_Client
, - , Passive_Client
, Linked_Map_Descriptor
, CMD RPM
, CMD RPM
, CMD RPM
, CMD RPM
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, 0 , N1 1 , 1
Configure a Map Descriptor for each Object and Property. These are component
Map Descriptors forming part of the composite Map Descriptor CMD WPM above.
, 3 , N1 1
, 7 , N1 1
, 12 , N1 1
, 13 , N1 1
, 0 , N1 1
Set Linked_Map_Descriptor to the name of the active
read or write Map Descriptor governing the transaction.
, N1 1 , 1
, Data_Array_Name , Data_Array_Index
, DA RPM , 0
, DA RPM , 1
, DA RPM , 2
, DA RPM , 6
BACnet PTP Serial Driver Manual
, 2 , 7 , -
, 4 , 3 , 8 , CMD WPM
, 8 , 4 , 10 , CMD WPM
, 1 , 1 , 10 , CMD WPM
, 1 , 1 , 10 , CMD WPM
, 0 , 10 , 11 , CMD WPM
, 2 , - , -
, Node_Name
, N1 1
These map descriptors
, N1 1
form part of the read
, N1 1
transaction defined by
, N1 1
Map Descriptor CMD
RPM above.