CntInputDIByte

Function

Read the general input. Supports multi-processing.

Format

Ret = CntInputDIByte ( Id , Reserved , bData )

Parameters

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

Reserved [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify 0.

bData [ VB.NET: Byte ] [ C, C++: BYTE * ] [ C#: out byte ] [ Python: ctypes.POINTER(ctypes.c_ubyte) ]
Specify the address of the variable that stores the general-purpose input data.

Return Value

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

Definition	Value	Description
CNT_ERR_SUCCESS	0	Normality completion
CNT_ERR_SYS_RECOVERED_FROM_STANDBY	7	Execute the function CntResetDevice to return from the standby mode.
CNT_ERR_DLL_INVALID_ID	10001	Invalid ID was specified.
CNT_ERR_DLL_CALL_DRIVER	10002	CNT driver can't be called (Failed in the device I/O control).
CNT_ERR_DLL_MODE	10100	Invalid mode setting.
CNT_ERR_DLL_BUFF_ADDRESS	10101	Invalid data buffer address.
CNT_ERR_SYS_BOARD_EXECUTING	20002	Cannot use while by another device works.

The others: (See also: Details of Error Code)

Initial Value

None

Remarks

Read the general input.

This function can retrieve the general-purpose input of all channels on the device.
The status function CntReadStatus can all retrieve the general-purpose input, but this function can conveniently read out all 8-bit general input.

It is necessary to be starting the counter operation, if you want to read the general-purpose input by the device without sampling function.

You can always read the general-purpose input even if you set other than the general-purpose by CntSetInputHardwareEvent.

Example

Read the general input.

VB.NET	Dim Ret As Integer Dim bData As Byte Ret = CntInputDIByte ( Id , 0 , bData )
C, C++	long Ret; BYTE bData; Ret = CntInputDIByte ( Id , 0 , &bData );
C#	int Ret; byte bData; Ret = cnt.InputDIByte ( Id , 0 , out bData );
Python	Ret = ctypes.c_long() bData = ctypes.c_ubyte() Ret.value = ccnt.CntInputDIByte ( Id , 0 , ctypes.byref(bData) )