Rice Lake iRite IDE - Manual (Page 35)

920i Programming Reference - API Reference 31
5.0 API Reference
This section lists the application programming interfaces (APIs) used to program the 920i indicator. Functions
are grouped according to the kinds of operations they support.
Note
If you are unsure whether your version of software supports a given API, check the system.src file to see if
the API is present.
5.1 Scale Data Acquisition
Note
Unless otherwise stated, when an API with a VAR parameter returns a SysCode value other than SysOK,
the VAR parameter is not changed.
5.1.1Weight Acquisition
CloseDataRecording
Turns off data recording started with InitDataRecording. This procedure removes all connections to the data
recording function. To restart data recording, use the InitDataRecording function.
Method Signature:
procedure CloseDataRecording (scale_no : Integer);
Parameters:
[in] scale_no Scale number
GetDataRecordSize
Returns the number of data points recorded in the user-specified data array.
Method Signature:
function GetDataRecordSize (scale_no : Integer) : Integer;
Parameters:
[in] scale_no Scale number
SysCode values returned:
number The SysCode contains the number of data points recorded.
GetGross
Sets W to the current gross weight value of scale S, in the units specified by U. W will contain a weight value even
if the scale is in programmed overload.
Method Signature:
function GetGross (S : Integer; U : Units; VAR W : Real) : SysCode;
Parameters:
[in] S Scale number
[in] U Units (Primary, Secondary, Tertiary)
[out] W Gross weight
SysCode values returned:
SysInvalidScale The scale specified by S does not exist.
SysInvalidUnits The units specified by U is not valid.
SysInvalidRequest The requested value is not available.
SysDeviceError The scale is reporting an error condition.
SysOK The function completed successfully.
Example:
GrossWeight : Real;
…
GetGross (Scale1, Primary, GrossWeight);
WriteLn (Port1, "Current gross weight is", GrossWeight);