Map Descriptor Example: Read Indications - FieldServer Genisys FS-8700-133 Driver Manual

FS-8700-133 Genisys Manual
5.4 Map Descriptor Example: Read Indic ations
The following Map Descriptors will read indication words from physical Server Genisys_01 and Genisys_02 (described in Client Side Node Descriptors section).
The Cos_Poller Map Descriptor polls VHLC for any indication word changes and returned data is stored on the Data Array under the COS_READ Map Descriptor
for the same Node. The rate of polling is determined by the Scan_Interval.
The Cos_Read Map Descriptor also polls VHLC for all indication words irrespective of data change. The rate of polling is determined by the Scan_Interval.
If Data_Type is Byte, any location in Data Array will hold one indication word from VHLC.
If Data_Type is Bit, eight consecutive locations in Data Array will hold one indication word from VHLC. Also see Appendix A.1.
// Client Side Map Descriptors
//
Map_Descriptors
Map_Descriptor_Name , Scan_Interval
CMD_01 , 1.00s
CMD_01a , 50s
CMD_02 , 1.00s
CMD_02a , 50s
Frequency (in
seconds) to read
Indication Statuses
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, Data_Array_Name , Data_Array_Offset
, DA_COS_01 , 0
, DA_8I_01 , 0
, DA_COS_02 , 0
, DA_DI_01 , 0
Name of one of the Data
Starting offset
Arrays defined in the
in Data Array to
Data_Array section.
hold 1
Indication statuses will be
indication
stored in this Data Array
status
Page 9 of 13
, Function , Node_Name
, COS_Poller , Genisys_01
, COS_Read , Genisys_01
, COS_Poller , Genisys_02
, COS_Read , Genisys_02
One of the Nodes
declared in Node
st
Section. Indications
will be read from the
station address
belonging to this Node
, Data_Type , Address , Length
, Byte , 0 , 1
, Byte , 0 , 32
, Bit , 0 , 1
, Bit , 0 , 256
Number of consecutive
locations in the Data array
to be used for storing data
from the Server.