User Guide

FS-8700-113 X30 Profibus DP Slave Driver Manual Page 8 of 14
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4.4. Server Side Map Descriptors
4.4.1. FieldServer Specific Map Descriptor Parameters
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 -Reads data from the
local input buffer
WRBC -Writes data to the
local output buffer
4.4.2. Driver Specific Map Descriptor Parameters
Column Title Function Legal Values
Node_Name Name of Node
One of the Node names
specified in “Server Node
Descriptor” above
Profibus_Data_Type Data Type of local buffer BYTE, WORD, FLOAT, BOOL
Address Byte offset into local buffer
RDBC: 0 – 243
WRBC: 0 – 243
Length
Number of
Profibus_Data_Type items in
local buffer
BYTE: 1 – 244
WORD: 1 – 122
FLOAT: 1 – 61
BOOL: 1 – 1952
Important Note:
The combined total length of all Map Descriptors may not exceed 416 bytes.