DioCountPreset

Function

Presets the count values.

Format

Ret = DioCountPreset ( Id , ChNo , ChNum , PresetCount )

Parameters

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

ChNo [ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the start address of the array that stores the channel numbers to be set.

ChNum [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the number of channels specified in ChNo.

PresetCount [ VB.NET: Integer ] [ C, C++: unsigned long * ] [ C#: out uint ] [ Python: ctypes.POINTER(ctypes.c_ulong) ]
Specify the start address of the array that stores the preset values.

Specifiable range :
For 32-bit counter devices : 0h <= Count <= FFFFFFFFh

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_DLL_BUFF_ADDRESS	10100	Invalid data buffer address.
DIO_ERR_SYS_NOT_SUPPORTED	20001	This board couldn't use this function.
DIO_ERR_SYS_CH_NO	20105	Channel No. is outside the setting range.
DIO_ERR_SYS_CH_NUM	20106	Channel number is outside the setting range.
DIO_ERR_SYS_COUNT_VAL	20810	Count value is outside the setting range.

The others (See also: Details of Error Code)

Remarks

- Presets the count values of the specified channels.

Example

Presets the count value to 500 for channel 0, and the count value to 1000 for channel 1.

VB.NET	Dim Ret As Integer Dim ChNo As Short Dim PresetCount As Integer ChNo(0) = 0 ChNo(1) = 1 PresetCount(0) = 500 PresetCount(1) = 1000 Ret = DioCountPreset( Id , ChNo , 2 , PresetCount )
C, C++	long Ret; short ChNo[2] unsigned long PresetCount[2]; ChNo[0] = 0; ChNo[1] = 1; PresetCount[0] = 500; PresetCount[1] = 1000; Ret = DioCountPreset( Id , ChNo , 2 , PresetCount );
C#	int Ret; short[] ChNo = new short[2]; uint[] PresetCount = new uint[2]; ChNo[0] = 0; ChNo[1] = 1; PresetCount[0] = 500; PresetCount[1] = 1000; Ret = dio.DioCountPreset( Id , out ChNo , 2 , out PresetCount );
Python	Ret = ctypes.c_long() ChNoType = ctypes.c_short * 2 ChNo = ChNoType() PresetCountType = ctypes.c_ulong * 2 PresetCount = PresetCountType() ChNo[0] = 0 ChNo[1] = 1 PresetCount[0] = 500 PresetCount[1] = 1000 Ret.value = cdio.DioCountPreset( Id , ChNo , 2 , PresetCount )