AioStartAo

Function

Starts DA conversion based on the condition settings.

Format

Ret = AioStartAo ( Id )

Parameters

Id [ VB.NET : Short ] [ C, C++ : short ] [ C# : short ] [ Python : ctypes.c_short ]
Specifies the ID retrieved from AioInit function.

Return value

Ret [ VB.NET : Integer ] [ C, C++ : long ] [ C# : int ] [ 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.
20001	This function can't be used by this device
20002	Can not use while by another device works To use this function, analog output 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.
23320	Data aren't established, or memory can't be secured
23321	Data aren't established
23326	A user buffer isn't set up

Remarks

When this function is executed, DA conversion is started based on the set condition.
The generating clock period error and DA conversion error are automatically reset, but the other state and status aren't reset.

The device action stops when all of output is completed on the setting condition.

This function cannot be used on devices without the analog output function.
This function cannot be executed if the device is in operation.

If external clock is specified by function AioSetAoClockType, by executing this function, the number of generatings (AioGetAoSamplingCount) or the transfer count (AioGetAoTransferCount) will increase by 1.
This is because, even if one data has been sent to DA converter by the gate open, the actual output will not performed until an external trigger is input.

Example

Start DA conversion.

VB.NET	Dim Ret As Integer Ret = AioStartAo ( Id )
C, C++	long Ret; Ret = AioStartAo ( Id );
C#	int Ret; Ret = aio.StartAo ( Id );
Python	Ret = ctypes.c_long() Ret.value = caio.AioStartAo ( Id )