SmcWCountEvent

Function

Sets count match event.

Format

Ret = SmcWCountEvent( Id , AxisNo , hWnd , EventMode , CountType, Count )

Parameters

Id [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
SSpecify the Deice ID retrieved by SmcWInit function.

AxisNo [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify axis number.

hWnd [ VB.NET: IntPtr ] [ C, C++: HWND ] [ C#: IntPtr ] [ Python: ctypes.wintypes.HANDLE ]
Specify the window handle who activates the event.

EventMode [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Set the event to valid/invalid.

0	Invalidate the event.
1	Validate the event

CountType [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Set the counter that does the count agreement.

0	Number of output pulses
1	Number of encoders of count pulses

Count [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]
Set the number of counts.
The specified range varies depending on the device.
For details, please refer to "Specifications based on devices section".

Return Value

Ret [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]

0	Terminated normally
Non-zero	Terminated abnormally

Remarks

When the counter value reaches the number of specified counts, the events occur.
If the event generation function is executed once, the event is generated every time the factor is generated afterwards.
It is not necessary to execute it two or more times excluding the purpose to stop the event.
The message number is fixation.

The message of message number "8701H" is done in the specified window handle when the output pulse number count agreement event is generated and PostMessage is done.

The message of message number "8702H" is done in the specified window handle when the encoder pulse number count agreement event is generated and PostMessage is done.

The following information enters wParam and lParam that is the parameter of the message respectively.
LOWORD(wParam)=ID acquired in SmcWInit function.
LOWORD(lParam)=Axis number.
- HIWORD and LOWORD show high word and low word respectively.

In the SmcWSetCtrlTypeOut function, the count agreement can output the signal while the condition is consisting only as for the output signal that the counter count agreement signal setting is done.
- Therefore, the change in the level is at a very fast pulse output and there is a possibility not to be able to recognize as data in the output destination for the moment.
- The signal become like the state that the level changes when stopping by the number of specified pulses.
- One shot pulse that specifies the width of the signal cannot be output.
There are two kinds of signals as follows.
- Output pulse counter count agreement signal(CP1)
Set "0: the number of output pulses" to CountType and when the output pulse number count agreement event is effective.
- Encoder counter count agreement signal(CP2)
Set "1: the number of encoders of count pulses" to CountType and when the encoder pulse number count agreement event is effective.

Specifications based on devices

Model No.	LSI chip for Pulse Control chip () : bit number for encoder input	The valid range for Count
SMC-4DL-PE SMC-8DL-PE SMC-4DL-PCI SMC-8DL-PCI	PCL6145 (32bits)	-2,147,483,648 to +2,147,483,647
SMC-4DL-PE SMC-8DL-PE SMC-4DL-PCI SMC-8DL-PCI	PCL6143 (28bits)	-134,217,728 to +134,217,727
SMC-4DF2-PCI SMC-8DF2-PCI	PCL6045BL equivalent (28bits)	-134,217,728 to +134,217,727

You can confirm "LSI chip" on your device with "Diagnostic Report".

Example

The count agreement event when becoming number 500 of output pulses for axis number 1 is set.

VB.NET
Dim Ret As Integer
Ret = SmcWCountEvent( Id , 1 , Handle , 1 , 0 , 500 )

C, C++
long Ret;
Ret = SmcWCountEvent( Id , 1 , hWnd , 1 , 0 , 500 );

C#
int Ret;
Ret = Smc.WCountEvent( Id , 1 , hWnd , 1 , 0 , 500 );

Python
Ret = ctypes.c_long()
Ret.value = csmc.SmcWCountEvent( Id , 1 , hWnd , 1 , 0 , 500 )