Rice Lake iRite IDE - Manual (Page 39)

920i Programming Reference - API Reference 35
5.1.4 Accumulator Operations
ClearAccum
Sets the value of the accumulator for scale S to zero.
Method Signature:
function ClearAccum (S : Integer) : SysCode;
Parameters:
[in] S Scale number
SysCode values returned:
SysInvalidScale The scale specified by S does not exist.
SysPermissionDenied The accumulator is not enabled for the specified scale.
SysDeviceError The scale is reporting an error condition.
SysOK The function completed successfully.
Example:
ClearAccum (Scale1);
GetAccum
Sets W to the value of the accumulator associated with scale S, in the units specified by U.
Method Signature:
function GetAccum (S : Integer; U : Units; VAR W ; Real) : SysCode;
Parameters:
[in] S Scale number
[in] U Units (Primary, Secondary, Tertiary)
[out] W Accumulated weight
SysCode values returned:
SysInvalidScale The scale specified by S does not exist.
SysInvalidUnits The units specified by U is not valid.
SysDeviceError The scale is reporting an error condition.
SysPermissionDenied The accumulator is not enabled for the specified scale.
SysOK The function completed successfully.
Example:
AccumValue : Real;
…
GetAccum (Scale1, AccumValue);
GetAccumCount
Sets N to the number of accumulations performed for scale S since its accumulator was last cleared.
Method Signature:
function GetAccumCount (S : Integer; VAR N ; Integer) : SysCode;
Parameters:
[in] S Scale number
[out] N Accumulator count
SysCode values returned:
SysInvalidScale The scale specified by S does not exist.
SysPermissionDenied The accumulator is not enabled for the specified scale.
SysDeviceError The scale is reporting an error condition.
SysOK The function completed successfully.
Example:
NumAccums : Integer;
…
GetAccumCount (Scale1, NumAccums);