Sets the number of channels for the analog output conversion.
Ret = AioSetAoChannels ( Id , AoChannels )
Id
[ VB.NET : Short ] [ C, C++ : short ] [ C# : short ] [ Python : ctypes.c_short
]
Specifies the ID retrieved from AioInit function.
AoChannels
[ VB.NET : Short ] [ C, C++ : short ] [ C# : short ] [ Python : ctypes.c_short
]
Specifies the number of channels for the conversion.
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 |
10002 |
AIO
driver can't be called |
13060 |
The
value of AoChannels is outside the designated range of the function |
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 |
23060 |
It is converted on the maximum channel because it exceeds the number of maximum channels of the device |
One channel is used for all devices
If a device has the synchronous output function, it outputs the set channels at the same time. If the device have no the synchronous output function, it transparently (one after another output) outputs to the channel in the order of channel 0, 1, 2 and so on.
This function cannot be used on devices without
the analog output function.
If the device is in operation, the function cannot be performed.
2 channels are used for the analog output.
VB.NET |
Dim
Ret As Integer |
C, C++ |
long
Ret; |
C# |
int
Ret; |
Python |
Ret
= ctypes.c_long() |
AioGetAoChannels AioGetAoMaxChannels