FieldServer FS-8700-128 用户手册
FS-8700-128 Safetran SCS-128 Manual
Page 13 of 15
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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
characters
Data_Array_Name
Name of Data Array where data is to be
stored in the FieldServer
stored in the FieldServer
One of the Data Array
names from “Data Array”
section above
names from “Data Array”
section above
Data_Array_Offset
Starting location in Data Array
0 to maximum specified
in “Data Array” section
above
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)
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
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’ 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
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
32-Bit_Reg
Length
Length of Map Descriptor
Number of indications to serve or number of
controls to store as per Data_Type.
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
Byte: 1-32, 2
Register: 1-16, 1
32-Bit_Reg: 1-8, 1
Address
Irrelevant parameter for this driver