AioGetDioDirection

Function

Retrieves I/O direction of digital I/O ports.

Ret = AioGetDioDirection ( Id , Dir )

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

Dir [ C, C++： long * ] [ Python： ctypes.POINTER(ctypes.c_long) ]
Specifies the address of the variable to store the I/O direction.

Return values

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.
14051	Pointer to Dir is NULL.
20001	This function can't be used by this device

The set I/O status of each port can be retrieved.

AIO-163202G-PE
AIO-163202UG-PE
AIO-123202G-PE
AIO-123202UG-PE

Initial value is Dir = 0 (Port0 and Port1 are both Input)

* This function cannot be executed if the [E-series settings] jumper on the device is [Use as E-series compatible].

AIO-121602LN-USB
AIO-120802LN-USB

Initial value is Dir = 0 (Port0 and Port1 are both Input)

Devices other than the above

This function cannot be executed.

Retrieves the set I/O direction.

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