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FS -8700-59 Canatal Sachnet Driver Manual
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 (408) 262-2299 fax: (408) 262-9042
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4.4 Client 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_Location Starting location in Data Array 0 to maximum specified in “Data
Array” section above
Function Function of Client Map Descriptor RDBC, WRBC, WRBX
4.4.2 Driver Specific 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
Length Length of Map Descriptor 1 - 1000 ( Maximum value is
dependent on the values of
Cana_Series and Cana_table. For
more information see section 6.1
Address This term is used to refer to the offset into the
Canatal device data table.
Each table first element is addressed as zero,
the 2nd element as 1 etc.
The address & length must not exceed the
maximum length of he table being addressed.
0,1,2,3 ...
Protocol Specific
Parameters
Cana_Series Refers to the Canatal Corporation Inc. device
series number. Although different series of
equipment have similar tables with similar
contents they are not all the same, the
contents may vary and the data formats do
vary.
2,4,5,6,9
Cana_Table This is the data table in the device you wish
to read.
Non zero integers. Legal values
may be obtained by reading section
6.1.
Cana_Format * Used to over-ride the default data storage
method the driver assigns to the table. This
paramater may be required when reading data
from a table with midex data formats. See
section 6.1 to identify which table have
mixed data formats and what the default type
the driver allocates to the table.
Bype, BCD, BCD4, Float, Word,
Percent, Swap_int.
4.4.3 Timing Parameters
Column Title Function Legal Values
Scan_Interval Rate at which data is polled >0.1s