FieldServer FS-8700-128 instruction manual Driver Specific Map Descriptor Parameters

FS-8700-128 Safetran SCS-128 Manual Page 13 of 15

5.3.Server Side Map Descriptors

5.3.1.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

One of the Data Array

stored in the FieldServer

names from “Data Array”

section above

0 to maximum specified

Data_Array_Offset

Starting location in Data Array

in

“Data

Array”

section

above

Function

Function of Server Map Descriptor

Server

Specifies time FieldServer will reserve

Server_Hold_Timeout

Server side connection while waiting for

>1.0s

the Client

side

to

update data

in

Data_Array (if necessary)

5.3.2.

Driver Specific Map Descriptor Parameters

Column Title

Function

Legal Values

One

of

the

Node

Node_Name

Name of Node to fetch data from

names

specified in

“Client

Node

Descriptor” above

Specify type of requests to handle from client.

SCS128_Poll_Type

‘Indications’ Handle all read requests from client.

Indications, Controls

‘Controls’ Handle all write requests from client

‘Flag’ each byte of Controls will be stored in 8

consecutive locations in the Data Array.

Similarly while responding Indications; status

byte will be composed with data from 8

consecutive locations.

‘Byte’ each byte of Controls will be stored as 8

Bit Integer at specified location. Similarly while

responding Indications; status byte will be

composed with data from single location.

Data_Type

‘Register’ every

two

bytes

of Controls

will

be

Flag, Byte, Register,

stored as 16 Bit integer at specified location.

32-Bit_Reg

Similarly while responding indications; two

Control bytes will be composed with data from

single location.

’32-Bit_Reg’ every four Control bytes will be

stored as 32 Bit integer at specified location.

Similarly while responding indications; four

Control bytes will be composed with data from

single location.

Refer to Appendix A

Length of Map Descriptor

Flag: 8-256, 16

Byte: 1-32, 2

Length

Number of indications to serve or number

of

Register: 1-16, 1

controls to store as per Data_Type.

32-Bit_Reg: 1-8, 1

Address

Irrelevant parameter for this driver

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