AioGetAiEventSamplingTimes

Function

Retrieves the number of samplings when "Event that the specified number of data are stored" is used.
This settings is necessary when the transfer mode of the conversion data that is set by AioSetAiTransferMode function is Device buffer mode.
This function needn't be executed if the transfer mode of the conversion data is User buffer.

Format

Ret = AioGetAiEventSamplingTimes ( Id , AiSamplingTimes )

Parameters

Id [ C, C++ : short ] [ Python : ctypes.c_short ]
Specifies the Device ID retrieved from AioInit function.

AiSamplingTimes [ C, C++ : long * ] [ Python : ctypes.POINTER(ctypes.c_long) ]
If the event factor is AIE_DATA_NUM, specifies the address of the variable that stores the number of samplings when the event raises.

Return value

Ret [ C, C++ : long ] [ Python : ctypes.c_long ]

Return values	Content
0	Normality completion
7	Execute AioResetDevice function because the device has recovered from standby mode
10001	Invalid Id was specified Use the Id retrieved from AioInit to specify the Id in this function.
10002	AIO driver can't be called At first, perform AioInit function.
11410	Pointer to AiSamplingTimes is NULL Specify the address of variable to parameter.
20001	This function can't be used by this device
20002	Can not use while by another device works To use this function, analog input operation must be stopped.
20003	Can not use because another process is using the device When another process is using the device, all functions except for those that support multi-process can not be performed.

Initial value

In all devices, AiSamplingTimes = 500

Remarks

This function cannot be used on devices without the analog input function.
If the device is in operation, the function cannot be performed.

Example

Retrieves the number of samplings when "Event that the specified number of data are stored" is used.

C, C++	long Ret; long AiSamplingTimes; Ret = AioGetAiEventSamplingTimes ( Id , &AiSamplingTimes );
Python	Ret = ctypes.c_long() AiSamplingTimes = ctypes.c_long() Ret.value = caio.AioGetAiEventSamplingTimes ( Id , ctypes.byref(AiSamplingTimes) )