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FS-8705-06 GPA (General Purpose ASCII) Manual Page 9 of 15
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4.4. Client Side Map Descriptors
4.4.1. FieldServer Related 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 Client Map Descriptor.
Refer to the FieldServer configuration
information for more information. Note
that passive client means that the map
descriptor owns the Data Array
elements and no other active Map
Descriptor can address the same data.
Server, passive
4.4.2. Driver Related Map Descriptor Parameters
Column
Title
Function Legal Values
Node_Name Name of Node to fetch data from
One of the node names
specified in “Client Node
Descriptor” above
Data_Type
Data type
Your choice affects how data is stored.
If you use a Digital type then data is
stored only as 1’s or Zero’s. If you use
non Float types the values are truncated.
Thus 0.6 is stored as zero.
Ana_Input , Ana_Output ,
Register , Float_Reg ,
Dig_Input , Dig_Output
Length
Length of Map Descriptor
Specifies the maximum number of string
items that can be converted to numbers
and stored.
Other than ‘using up’ point count, there is
no danger in setting the length to a larger
number than required.
1,2,3…
Address
This commonly used parameter is not
used by this driver.