AioGetCntInputSignal

Function

Retrieves the type of counter input signal.

Format

Ret = AioGetCntInputSignal ( Id , CntChannel , CntInputSignal )

Parameters

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

CntChannel [ C, C++ : short ] [ Python : ctypes.c_short ]
Sets the channel of counter.

CntInputSignal [ C, C++ : short * ] [ Python : ctypes.POINTER(ctypes.c_short) ]
Specifies the address of the variable that stores the clock type.

0	External clock

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.
15070	The value of CntChannel is outside the designated range of the function
15071	Pointer to CntClockType 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, counter 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.
25070	The value of CntChannel is outside the designated range of the device being used

Initial values

External clock for all devices

Remarks

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

Example

Retrieves the type of counter input signal.

C, C++	long Ret; short CntInputSignal; Ret = AioGetCntInputSignal ( Id , 0, &CntInputSignal );
Python	Ret = ctypes.c_long() CntInputSignal = ctypes.c_short() Ret.value = caio.AioGetCntInputSignal ( Id , 0, ctypes.byref(CntInputSignal) )