AioGetAiTransferMode

Function

Retrieves the transfer mode of the analog input conversion data.

Format

Ret = AioGetAiTransferMode ( Id , AiTransferMode )

Parameters

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

AiTransferMode [ C, C++ : short * ] [ Python : ctypes.POINTER(ctypes.c_short) ]
Specifies the address of the variable that stores the transfer mode of the conversion data.

0	Device buffer mode
1	User buffer mode

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.
11970	Pointer to AiTransferMode 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, AiTransferMode = 0

Remarks

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

Specifications based on devices

AI-1204Z-PE	Returns AiTransferMode=0 or 1. In user buffer mode, releasing a registered user buffer at any time may cause an exception error. Release the user buffer after executing one of the following function processing. - Execute AioExit(). Stop the device and release all the memory and threads used by the driver. - Execute AioResetDevice(). Perform initialization. The operation of device has stopped. - Re-specify the user buffer mode with AioSetAiTransferMode() and specify a new user buffer with AioSetAiTransferData().
AI-1204Z-PCI	AI-1204Z-PCI doesn't support by API-AIO(LNX).
AI-1664UG-PE AIO-163202G-PE AIO-163202UG-PE AIO-123202G-PE AIO-123202UG-PE	Returns AiTransferMode=0 or 1. In user buffer mode, releasing a registered user buffer at any time may cause an exception error. Release the user buffer after executing one of the following function processing. - Execute AioExit(). Stop the device and release all the memory and threads used by the driver. - Execute AioResetDevice(). Perform initialization. The operation of device has stopped. - Re-specify the user buffer mode with AioSetAiTransferMode() and specify a new user buffer with AioSetAiTransferData().
AIO-163202F-PE ADA16-32/2(PCI)F	AiTransferMode = 0 is fixed.
AIO-160802L-LPE ADA16-8/2(LPCI)L ADAI16-8/2(LPCI)L AIO-160802LI-PE	AiTransferMode = 0 is fixed.
AI-1616L-LPE AD16-64(LPCI)LA AD16-16(LPCI)L ADI16-16(LPCI)L AI-1616LI-PE AI-1664LA-LPE	AiTransferMode = 0 is fixed.
AD12-16(PCI)EV AD12-16U(PCI)EV AD16-16(PCI)EV AD16-16U(PCI)EV AIO-121601E3-PE AIO-121601UE3-PE AIO-161601E3-PE AIO-161601UE3-PE AI-1216I2-PCI	AiTransferMode = 0 is fixed.
AD12-64(PCI) AD12-16(PCI)	AiTransferMode = 0 is fixed.
AI-1604CI2-PCI	AiTransferMode = 0 is fixed.
AI-1608AY-USB AIO-160802AY-USB AI-1608GY-USB AIO-160802GY-USB	AiTransferMode = 0 is fixed.
AIO-163202FX-USB	AiTransferMode = 0 is fixed.
AIO-16256256-DEMO	AiTransferMode = 0 is fixed.
AI-1664LAX-USB	AiTransferMode = 0 is fixed.
AIO-121602LN-USB AIO-120802LN-USB	AiTransferMode = 0 is fixed.
AI-1608VIN-USB AI-1608AIN-USB	AiTransferMode = 0 is fixed.

Example

Retrieves the transfer mode of the analog input conversion data.

C, C++	long Ret; short AiTransferMode; Ret = AioGetAiTransferMode ( Id , &AiTransferMode );
Python	Ret = ctypes.c_long() AiTransferMode = ctypes.c_short() Ret.value = caio.AioGetAiTransferMode ( Id , ctypes.byref(AiTransferMode) )