FS-8700-122 X30 Profibus DP Master Manual

Page 8 of 16

4.5.Client Side Map Descriptors

4.5.1.FieldServer Related Map Descriptor Parameters

 

Column Title

 

Function

 

Legal Values

 

Map_Descriptor_Name

 

Name of this Map

 

Up to 32 alphanumeric

 

 

Descriptor

 

characters

 

 

 

 

 

 

 

Name of Data Array

 

One of the Data Array

 

Data_Array_Name

 

where data is to be

 

 

 

 

names from “Data Array”

 

 

stored in the

 

 

 

 

 

section above

 

 

 

FieldServer

 

 

 

 

 

 

 

Data_Array_Offset

 

Starting location in Data

 

0 to maximum specified in

 

 

Array

 

“Data Array” section above

 

 

 

 

 

Function

 

Function of Client Map

 

RDBC, WRBC

 

 

Descriptor

 

 

 

 

 

 

4.5.2.Driver Related Map Descriptor Parameters

 

Column Title

 

Function

 

 

 

Legal Values

 

Node_Name

 

Name of Node to

fetch

 

One of the node names

 

 

data from

 

 

specified

in “Client

Node

 

 

 

 

 

Descriptor” above

 

 

 

 

 

 

 

 

 

Profibus_Data_Type

Arrangement of buffer data

 

BYTE,

WORD,

BOOL,

 

 

FLOAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address

 

Starting address of

buffer

0

- 243

 

 

 

 

 

in bytes

 

 

 

 

 

 

 

 

 

 

 

1

- 244 ( BYTE )

 

 

Length

Length of Map Descriptor

1

- 122 ( WORD )

 

 

1

- 1952 ( BOOL )

 

 

 

 

 

 

 

 

 

 

 

 

1

- 61 ( FLOAT )

 

Important Note:

A maximum combined total length of 1536 bytes are permitted for all Map Descriptors accessing Slave devices.

4.5.3.Timing Parameters

 

Column Title

 

 

Function

 

Legal

 

 

 

 

Values

 

 

 

 

 

 

 

Scan_Interval

 

Rate at which data is transferred from FieldServer data

≥0.001s

 

 

 

 

arrays to Profibus Master buffers.

 

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 8
Image 8
FieldServer FS-8700-122, X30 instruction manual Driver Related Map Descriptor Parameters, Timing Parameters