User Guide

FS-8700-86 Carrier DataPort Page 12 of 32
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5.4. Server Side Map Descriptors
5.4.1. 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 passive
5.4.2. 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 “Server
Node Descriptor” above
Length
6
Length of Map Descriptor. When reading a
compete table, set to the maximum number of
data values to be stored.
1 – 1000
Table_Name*
The name of the table to be polled, e.g.
DISPLAY. This parameter is for display purposes
only. The driver does not use the value of this
parameter.
Some system elements have multiple instances
of the same table name. For example, the
Terminal System Manager has 64 Temperature
Zone configuration tables. The individual tables
are named TZONE1 though TZONE64. These
tables are accessed by using both the primary &
secondary table names.
E.g. ‘TZCONF TZONE1’
Only Ascii characters are
permitted.
When using the table
name parameter to
specify a primary and
secondary table, leave a
single space between
the two names.
Field_Name This is the field variable pneumonic.
An Ascii string which
may not
contain spaces.
Max length 8 characters.
Field_Description Returned when a Client does a read.
An Ascii string which
may contain spaces.
Max length 24
characters.
Field_Units
Returned when a Client does a read. If units
have no meaning for the variable set to zero.
A whole number. See
Appendix A.1
Field Status*
This parameter is used to set data quality
information that is returned when the Client polls
for data. If omitted and DA_Byte_Name has not
been specified the driver returns zero as the
status value.
A whole number. See
Appendix A.1 for more
information.
6
Additional information on the length parameter is provided in Appendix A.