Industrial
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User Manual
BACnet Master / PROFIBUS Slave
Document code: MN67716_ENG Revision 1.001 Page 21 of 28
Figure 4b: “BACnet Set Access
BACnet Write” window
The means of the fields in the window (Write) are the follows:
In the field “
IP Address/ID
” the IP address/ID of the slave that contains the data to be written is defined;
In the field “
Object Type
” the BACnet object to write is defined;
In the field “
Data Type
” the data format of the object to write is defined;
In the field “
Instance
”, the instance number of the object is defined;
In the field “
Property
” the property to use for the writing is defined;
In the field “
Priority
” the priority to use for the writing request is defined;
In the field “
NByte
the number of bytes to take from PROFIBUS array is defined;
By checking the field “
En Dest
” it is possible to enable the Destination Network (D Net), Destination Length (D Len) and Destination
Address (D Adr). These informations are used for make a request to other segments of network;
In the field “
D Net
” the destination network (from 1 to 65535) is defined;
In the field “
D Len
” the length of “D Add” field is defined;
In the field “
D Adr
” the address of the endpoint is defined. If “D Len” is ‘1’, it is possible to insert a number from 1 to 255; if “D Len”
is ‘2’, it is possible to insert a number from 1 to 65535; if “D Len” is ‘6’, it is possible to insert an IP and port in this format
“192.168.2.188:47808”;
By checking the field “
Change
” the BACnet write request is made only if PROFIBUS data are changed; otherwise (if it is selected the
field “
Timer
”) is sent cyclically, using the “Poll Time”;
In the field “
Poll Time
” the frequency of the request is defined;
