Function
Presets the count value of specified channel. Supports multi-processing.
Format
Ret = CntPreset ( Id , ChNo , ChNum , PresetData )
Parameters
Id
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the device ID retrieved from CntInit.
ChNo
[ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short)
]
Specify the base address of array storing channel number.
ChNum
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the number of channels in array ChNo.
PresetData
[ VB.NET: Integer ] [ C, C++: unsigned long * ] [ C#: out uint ] [ Python:
ctypes.POINTER(ctypes.c_ulong) ]
Specify the base address of array storing the preset data value.
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_BUFF_ADDRESS |
10101 |
Invalid data buffer address. |
CNT_ERR_SYS_CH_NO |
20201 |
Channel number is out of range. |
CNT_ERR_SYS_CH_NUM |
20202 |
Number of channels is out of range. |
CNT_ERR_SYS_CH_VALUE |
20203 |
Counter value is out of range. |
The others: (See also: Details of Error Code)
Initial Value
None
Remarks
Sets the count value of specified channel. The channel number is put in the array and passed. The preset value is put in the array and passed. Store corresponding preset value in the array in the order of storing the channel number in the array.
For the device without sampling function, the value that was preset before the count operation starts is set, when the count starts.
Example
Presets the count value of channel 0 to 0, channel 1 to 10000.
VB.NET |
Dim Ret As Integer |
C, C++ |
long Ret; |
C# |
int Ret; |
Python |
Ret = ctypes.c_long() |
See Also