FieldServer Profibus DP FS-8700-20 User Manual
Page 15
FS-8700-20 Profibus DP Driver Manual
Page 15 of 22
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldServer.com
Tel: (408) 262-2299 Fax: (408) 262-9042 Toll_Free: 888-509-1970 email: [email protected]
5.5.
Server Side Map Descriptors
Map Descriptors control when and how data is transferred to or from the card buffers for an external Profibus Master to access.
Column Title
Function
Legal Values
Map_Descriptor_Name
Name of this Map Descriptor
Up to 32 alphanumeric characters
Data_Array_Name
Name of Data Array where data is to be stored in
the FieldServer
One of the Data Array names from “Data Array”
section above
Data_Array_Offset
Starting location in Data Array
0 to maximum specified in “Data Array” section
above
Function
Function of Server Map Descriptor
RDBC, WRBC
Node_Name
Name of DP Server Node
The node name specified in “Server Side Nodes”
above
Data_Type
Data type
FLOAT, WORD, BYTE, BIT
DP_Buffer
Specify buffer in the DP card being accessed.
Input, Output
Address
Address in DP_Buffer being accessed,
expressed in byte offset
0-243
Note: When using Data_Type BIT, the address is
in bit eg. from 0 - 1951
Length
Number of points in DP_Buffer being accessed,
expressed in points defined by Data_Type
1- 1952, depending on Data_Type
eg. when Data Type is WORD and length is 10, it
means that 10*2 = 20 bytes are used in the buffer
Example
// Server Side Map Descriptors
Map_Descriptors
Map_Descriptor_Name,
Data_Array_Name,
Data_Array_Offset,
Function, Node_Name, DP_Type, DP_Buffer, Address, Length
FLOAT_IN_01,
DA_FI_01,
0,
RDBC,
PDP_01,
FLOAT,
Output,
0000,
20
INT_IN_01,
DA_AI_01,
0,
RDBC,
PDP_01,
WORD,
Output,
0080,
20
BYTE_IN_01,
DA_BI_01,
0,
RDBC,
PDP_01,
BYTE,
Output,
0120,
20
BIT_IN_0,1
DA_DI_01,
0,
RDBC,
PDP_01,
BIT,
Output,
0140,
32
FLOAT_OUT_01,
DA_FO_01,
0,
WRBC,
PDP_01,
FLOAT,
Input,
0000,
20
INT_OUT_01,
DA_AO_01,
0,
WRBC,
PDP_01,
WORD,
Input,
0080,
20
BYTE_IN_01,
DA_BO_01,
0,
WRBC,
PDP_01,
BYTE,
Input,
0120,
20
BIT_IN_01,
DA_DO_01,
0,
WRBC,
PDP_01,
BIT,
Input,
0140,
32