DioOutByte

Function

Outputs a byte (8 Bits) to an output port.

Format

Ret = DioOutByte ( Id , PortNo , Data )

Parameters

Id [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from DioInit.

PortNo [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the logic output port number. The logical output port number is a number, which is allocated from the first output port of a device as 0 to the last one serially.

Data [ VB.NET: Byte ] [ C, C++: BYTE ] [ C#: byte ] [ Python: ctypes.c_ubyte ]
Set the output datum.

Return Value

Ret [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]

Definition	Value [Dec]	Description
DIO_ERR_SUCCESS	0	Normal completed.
DIO_ERR_SYS_RECOVERED_FROM_STANDBY	7	Execute DioResetDevice function because the device has recovered from standby mode.
DIO_ERR_DLL_INVALID_ID	10001	Invalid ID specified.
DIO_ERR_DLL_CALL_DRIVER	10002	Not call the driver (Failure on DEVICE I/O CONTROL).
DIO_ERR_SYS_NOT_SUPPORTED	20001	This board couldn't use this function.
DIO_ERR_SYS_PORT_NO	20100	Port No. beyond the limit.

The others (See also: Details of Error Code)

Initial Value

The initial value of the output datum is 0 after the device is reset. (DIO-0808RN-USB is set to FFH)

Remarks

Outputs a byte to an output port. The output datum is set by hex number from 0H to FFH.

Example

Outputs 55H to port 0.

VB.NET	Dim Ret As Integer Ret = DioOutByte ( Id , 0 , &H55 )
C, C++	long Ret; Ret = DioOutByte ( Id , 0 , 0x55 );
C#	int Ret; Ret = dio.OutByte ( Id , 0 , 0x55 );
Python	Ret = ctypes.c_long() Ret.value = cdio.DioOutByte ( Id , 0 , 0x55 )