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FS-8700-128 Safetran SCS-128 Manual Page 8 of 15
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4.4. Client Side Map Descriptors
4.4.1. FieldServer Related 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 Client Map Descriptor Rdbc, Wrbc, Wrbx
4.4.2. Driver Related 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 Poll_type
‘Recall’ or 2 always poll for current indications
‘Poll’ or 1 request for indications if changed
‘Controls’ or 3 writes controls to target device
‘Cutoff’ or 5 or 6 send ‘cutoff’ command to
target device
For Read Map
Descriptors :
Recall, 2, Poll, 1,
For Write Map
Descriptors :
Controls, 3
Cutoff, 5, 6
Data_Type*
‘Flag’ - each byte of Indication statuses will be
stored in 8 consecutive locations in the Data
Array. On write; one Control byte will be
composed from 8 consecutive locations.
‘Byte’- each byte of Indication statuses will be
stored as an 8 Bit Integer at the specified
location. On Write; one Control byte will be
composed from a single location.
‘Register’ - two bytes of Indication statuses will
be stored as a 16 Bit integer at the specified
location. On Write; two Control bytes will be
composed from a single location.
’32-Bit_Reg’ four bytes of Indication statuses
will be stored as 32 Bit integers at the
specified location. On Write, four Control bytes
will be composed from a single location.
Refer to Appendix A
Flag, Byte, Register,
32-Bit_Reg
Length*
Length of Map Descriptor
Number of indications to store or number of
controls to write as per Data_Type.
Flag: 8-256, 16
Byte: 1-32, 2
Register: 1-16, 1
32-Bit_Reg: 1-8, 1
4.4.3. Timing Parameters
Column Title Function Legal Values
Scan_Interval Rate at which data is polled ≥0.001s