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 |
10002 |
AIO
driver can't be called |
11410 |
Pointer
to AiSamplingTimes is NULL |
20001 |
This function can't be used by this device |
20002 |
Can
not use while by another device works |
20003 |
Can
not use because another process is using the device |
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; |
Python |
Ret
= ctypes.c_long() |
See also