Moxa M-1401 Manuál stáhnout pdf (Strana 80)

ioLogik MXIO DLL API Reference Direct I/O Command Sets

6-43

AI_Read

This function code is used to read the value of a specific analog

input channel.

C/C++

Arguments

Return Value

int AI_Read ( int hConnection,

BYTE bytSlot,

BYTE bytChannel,

double * dValue);

hConnection: The handle for an I/O connection.

bytSlot: Slot number of the I/O module, from 1 to 32.

This parameter is inactive for the ioLogik

E2000 and R2000.

bytChannel: The desired channel.

dValue: A pointer to the value of the desired analog

input channel. The unit is VDC for the voltage

module, and mA for the current module.

Succeed MXIO_OK.

Fail Refer

oRe

nCodes.

AI_ReadRaws

This function code is used to read the raw data values of

contiguous analog input values.

C/C++

Arguments

Return Value

int AI_ReadRaws ( int hConnection,

BYTE bytSlot,

BYTE bytStartChannel,

BYTE bytCount,

WORD wValue[ ]);

hConnection: The handle for an I/O connection.

bytSlot: Slot number of the I/O module, from 1 to 32.

This parameter is inactive for the ioLogik

E2000 and R2000.

bytStartChannel: Specifies the starting channel.

bytCount: The number of channels to read.

wValue: An array that stores the raw data values of the

contiguous A/I channels; wValue[0] represents

the value of the starting channel.

Succeed MXIO_OK.

Fail R

ode

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