Campbell BMP5 Direct SDK, Instruction Manual

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Section 2. SimplePB.DLL Reference
return_data: Char – The location in memory where the data returned from the
datalogger exists.
return_data_len: Integer – Number of bytes in the data returned from the
datalogger.
Return Codes
0 = Successful.
-1 = Communication timed out.
-2 = Port is not open.
Example of data returned by function call
14:22:51 04/16/2004 (Old Time Old Date)
14:22:27 04/16/2004 (New Time New Date)
2.7 GetValue()
Query the datalogger for a value or group of values.
Syntax
GetValue(pakbus_address, device_type, swath, table_name, field_name,
return_data, return_data_len)
Parameters
pakbus_address: Integer – The PakBus address of the datalogger.
device_type: Integer –The type of datalogger:
•
1=CR200
•
2=CR10XPB, CR23XPB, CR510PB
•
3=CR1000
•
4=CR3000
•
5=CR800, CR850
swath: Integer – The range within an indexed variable array to collect starting
at the location described in the field_name parameter. The requested swath
must be within the bounds of the indexed array or an error will occur.
table_name: String – The name of the table in the datalogger to collect.
field_name: String – The name of the field in the table where collection of
values should start.
return_data: Char – The location in memory where the data returned from the
datalogger exists.
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