AioGetCntInputSignal


Function

Retrieves the type of counter input signal.

Format

Ret = AioGetCntInputSignal ( Id , CntChannel , CntInputSignal )

Parameters

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

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

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

0

External clock

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.

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 value

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.

VB.NET

Dim Ret As Integer
Dim CntInputSignal As Short
Ret = AioGetCntInputSignal ( Id , 0, CntInputSignal )
 

C, C++

long Ret;
short CntInputSignal;
Ret = AioGetCntInputSignal ( Id , 0, &CntInputSignal );
 

C#

int Ret;
short CntInputSignal;
Ret = aio.GetCntInputSignal ( Id , 0, out CntInputSignal );
 

Python

Ret = ctypes.c_long()
CntInputSignal = ctypes.c_short()
Ret.value = caio.AioGetCntInputSignal ( Id , 0, ctypes.byref(CntInputSignal) )
 

See also

AioSetCntInputSignal