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FS-8700-101_Setra Model 370 Digital Pressure Gage Manual Page 11 of 23
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4.4.5. Map Descriptor Example #2 – Read Status
In this example a Map Descriptor is defined which controls the task of reading status data from the Setra Model 370 Digital Pressure
Gage. The task gets performed every 5.0 seconds. When a response is received the data is stored in the Data Array called
DA_STATUS stating at element zero (the offset). Each pressure status reading requires the driver store 20 parameters and hence
the length of the Map Descriptor is 20. Refer to Appendix A for further information.
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Gage_Function, Length, Scan_Interval
Read_Status, DA_STATUS, 0, RDBC, Gage1, Status , 20, 5.0s
Reserves 20
elements of the
Data Array to
store response
data.
Unique names
assist config file
validation
debugging but
are not
necessary
.
The name of a
Data Array in
which the
response data
will be stored.
The 1
s
t
location
in the Data
Array which will
be used for
storage.
The name of a Node defined in
the CSV file. The node name
connect the MD to a node which
in turn points to a connection
Thus the driver knows what port
and port settings to use to send
the poll..
Tells the driver
to read the
current status
from the Gage
Tells the driver
to schedule this
MD no more
often than 5
seconds.