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ioLogik MXIO DLL API Reference Direct I/O Command Sets

6-19

DO_Writes

This function code is used to write the output statuses of

contiguous D/O channels. There may not contiguous channels if

you use ioLogik E2212 DIO channels. Please make sure they are

contiguous channels or “ILLEGAL_DATA_VALUE” will be

return.

C/C++

Arguments

Return Value

int DO_Writes ( int hConnection,

BYTE bytSlot,

BYTE bytStartChannel,

BYTE bytCount,

DWORD dwValue);

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 be written.

dwValue: Stores the channel statuses of the contiguous

D/O channels; each bit holds the status of one

channel. A bit value of 0 represents the digital

output status of the start channel. A bit value of

1 represents the second digital output channel’s

status. The values of the unused bits are random.

Succeed MXIO_OK.

Fail Refer to Return Codes.

DO_Write

This function code is used to write the output status for a specific

D/O channel.

C/C++

Arguments

Return Value

int DO_Write ( int hConnection,

BYTE bytSlot,

BYTE bytChannel,

BYTE bytValue);

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.

bytValue: Stores the output status of the desired channel.

1 represents ON, 0 represents OFF.

Succeed MXIO_OK.

Fail Refer

oRe

nCodes.

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 128 129

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