FS-8705-06 GPA (General Purpose ASCII) Manual

Page 9 of 15

4.4.Client Side Map Descriptors

4.4.1.FieldServer Related Map Descriptor Parameters

 

Column Title

 

Function

 

Legal Values

 

 

 

 

 

Up

 

to

32

 

Map_Descriptor_Name

 

Name of this Map Descriptor

 

alphanumeric

 

 

 

 

 

 

characters

 

 

 

 

 

 

One

of

the

Data

 

Data_Array_Name

 

Name of Data Array where data is to be

 

Array

names

from

 

 

stored in the FieldServer

 

“Data

 

Array”

 

 

 

 

 

 

 

 

 

 

section above

 

 

 

 

 

 

0 to

maximum

 

Data_Array_Offset

 

Starting location in Data Array

 

specified

in

“Data

 

 

 

Array”

 

section

 

 

 

 

 

 

 

 

 

 

 

above

 

 

 

 

 

 

Function of Client Map Descriptor.

 

 

 

 

 

 

 

 

Refer to the FieldServer configuration

 

 

 

 

 

 

Function

 

information for more information. Note

 

Server, passive

 

 

that passive client means that the map

 

 

 

 

descriptor owns the Data Array

 

 

 

 

 

 

 

 

elements and no other active Map

 

 

 

 

 

 

 

 

Descriptor can address the same data.

 

 

 

 

 

4.4.2.

 

 

Driver Related Map Descriptor Parameters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Column

 

 

Function

 

 

Legal Values

 

 

 

Title

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

One of the node names

 

 

Node_Name

Name of Node to fetch data from

 

specified

in “Client Node

 

 

 

 

 

 

 

 

Descriptor” above

 

 

 

 

 

Data type

 

 

 

 

 

 

 

 

 

Your choice affects how data is stored.

 

Ana_Input , Ana_Output ,

 

 

 

 

 

If you use a Digital type then data is

 

 

 

Data_Type

 

 

Register

, Float_Reg ,

 

 

 

 

 

stored only as 1’s or Zero’s. If you use

 

Dig_Input

, Dig_Output

 

 

 

 

 

non Float types the values are truncated.

 

 

 

 

 

 

 

 

 

Thus 0.6 is stored as zero.

 

 

 

 

 

 

 

 

 

Length of Map Descriptor

 

 

 

 

 

 

 

 

 

Specifies the maximum number of string

 

 

 

 

 

 

 

 

 

items that can be converted to numbers

 

 

 

 

 

 

Length

 

and stored.

 

1,2,3…

 

 

 

 

 

 

 

Other than ‘using up’ point count, there is

 

 

 

 

 

 

 

 

 

no danger in setting the length to a larger

 

 

 

 

 

 

 

 

 

number than required.

 

 

 

 

 

 

Address

 

This commonly used parameter is not

 

 

 

 

 

 

 

used by this driver.

 

 

 

 

 

 

 

 

 

 

 

 

 

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: support@fieldserver.com

Page 9
Image 9
FieldServer FS-8700-115 instruction manual Driver Related Map Descriptor Parameters, Column Function Legal Values Title