FS-8700-128 Safetran SCS-128 Manual
Page 13 of 15
FieldServer Technologies
1991 Tarob Court Milpitas, California 95035 USA
Web
:www.FieldServer.com
Tel
: 408 262-2299
Fax
: 408-262-2269
Toll_Free
: 888-509-1970
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
stored in the FieldServer
One of the Data Array
names from “Data Array”
section above
Data_Array_Offset
Starting location in Data Array
0 to maximum specified
in “Data Array” section
above
Function
Function of Server Map Descriptor
Server
Server_Hold_Timeout
Specifies time FieldServer will reserve
Server side connection while waiting for
the Client side to update data in
Data_Array (if necessary)
>1.0s
5.3.2.
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
SCS128_Poll_Type
Specify type of requests to handle from client.
‘Indications’ Handle all read requests from client.
‘Controls’ Handle all write requests from client
Indications, Controls
Data_Type
‘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.
‘Register’ every two bytes of Controls will be
stored as 16 Bit integer at specified location.
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
Flag
, Byte, Register,
32-Bit_Reg
Length
Length of Map Descriptor
Number of indications to serve or number of
controls to store as per Data_Type.
Flag: 8-256,
16
Byte:
1-32,
2
Register: 1-16,
1
32-Bit_Reg: 1-8,
1
Address
Irrelevant parameter for this driver
