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ioLogik MXIO DLL API Reference Direct I/O Command Sets

6-83

RTD2K_SetMathPar

This function code is used to set the math parameter for a specific

RTD channel.

C/C++

Arguments

Return Value

int RTD2K_SetMathPar ( int hConnection,

BYTE bytChannel,

WORD wMathPar);

hConnection: The handle for an I/O device connection.

bytChannel : The specific channel to be set.

wMathPar: A pointer that stores the specific RTD

channel's math parameter. For AVG, Bit 0 o

high byte represents the first channel and Bit

1 of high byte represents the second channel.

For DEV,the High-Byte as subtrahend and

Low-Byte as minuend.

Exp : AVG( b’0000-0000 b’0010-0011) = ch5+ch1+ch0

Exp : DEV( b’0000-0100 b’0010-0000) = ch2-ch6

Succeed MXIO_OK.

Fail Refer

oRe

n Codes.

RTD2K_GetMathPars

This function code is used to get contiguous RTD channel's math

parameter.

C/C++

Arguments

Return Value

int RTD2K_GetMathPars ( int hConnection,

BYTE bytStartChannel,

BYTE bytCount,

WORD wMathPar[ ]);

hConnection: The handle for an I/O device connection.

bytStartChannel: Specifies the starting channel.

bytCount: The number of channels to be gets.

wMathPart: An array that stores the contiguous RTD

channel's math parameter, wMathPar[0]

represents the value of the starting channel.

The values are :

For AVG,Bit 0 of high byte represents the

first channel and Bit 1 of high byte

represents the second channel.

For DEV,High-Byte as subtrahend and

Low-Byte as minuend.

Exp : AVG( b’0000-0000 b’0010-0011) = ch5+ch1+ch0

Exp : DEV( b’0000-0100 b’0010-0000) = ch2-ch6

Succeed MXIO_OK.

Fail Refer

oRe

n Codes.

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