CntSetOutputHardwareEvent

Function

Sets the hardware event of control output signal. Supports multi-processing.

Format

Ret = CntSetOutputHardwareEvent ( Id , ChNo , OutputLogic , EventType , PulseWidth )

Parameters

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

ChNo [ C, C++ : short] [Python: ctypes.c_short]
Specifies the channel number which you want to set.

OutputLogic [ C, C++ : short] [Python: ctypes.c_short]
Specify the output logic of control output signal.

Definition	Value	Description
CNT_OEVENT_NEGATIVE	0	Negative logic
CNT_OEVENT_POSITIVE	1	Positive logic

* For CNT-3208M-PE or CNT32-8M(PCI), set positive logic / negative logic with SW2 on the board.
Specify 0 when executing this function.

EventType [ C, C++ : int] [Python: ctypes.c_int]
Specifies the control output signal hardware event type. When the specified conditions are satisfied, a pulse is output on the control output signal line.
The control output signal hardware event is set by the logical sum of the following value.

For general-purpose output, the other conditions cannot be specified at the same time.
And, it is not possible to specify "Disconnection Alarm Error" with the device that cannot select "Differential" as an external signal source.

Definition	Value	Description
CNT_OEVENT_GENOUT	00H	General-purpose output
CNT_OEVENT_MATCH0	01H	Count Match Register0
CNT_OEVENT_MATCH1	02H	Count Match Register1
CNT_OEVENT_FLTERR	04H	Filter Error
CNT_OEVENT_AIERR	08H	Abnormal Input Error
CNT_OEVENT_ALMERR	10H	Disconnection Alarm Error

PulseWidth [ C, C++ : short] [Python: ctypes.c_short]
Specify pulse width coefficient for one-shot pulse.
When general-purpose output is used, the pulse width is invalid. Specify 0.

For "Device with usual counter", please use CntSetPulseWidth.

Value	Pulse width
0H	10us
1H	100us
2H	1ms
3H	10ms
4H	100ms

Return Value

Ret [ C, C++ : long] [Python: ctypes.c_long]

Definition	Value	Description
CNT_ERR_SUCCESS	0	Normal Complete
CNT_ERR_DLL_INVALID_ID	10001	Invalid ID is specified.
CNT_ERR_DLL_CALL_DRIVER	10002	Driver cannot be called (failed in ioctl).
CNT_ERR_DLL_MODE	10100	Invalid mode setting.
CNT_ERR_SYS_MODE	20100	Invalid mode setting.
CNT_ERR_SYS_CH_NO	20201	Channel number is outside the range.
CNT_ERR_SYS_OUTPUT_LOGIC	20301	The output logic of the control output signal is out of range.
CNT_ERR_SYS_EVENT_TYPE	20302	The kind of hardware event is out of range.
CNT_ERR_SYS_PULSE_WIDTH	20303	The coefficient of one-shot pulse width is out of range.

The other errors: (See also: Details of Error Code)

Remarks

This function should be executed before starting the counter.

Example

C, C++	Ret = CntSetOutputHardwareEvent (Id, 0, CNT_OEVENT_NEGATIVE, CNT_OEVENT_MATCH0, 0);
Python	Ret = ccnt.CntSetOutputHardwareEvent (Id, 0, ccnt.CNT_OEVENT_NEGATIVE, ccnt.CNT_OEVENT_MATCH0, 0)