Measurement Computing Personal Daq rev.6.0 - Manual (Page 159)

Personal Daq User’s Manual Appendix B, 887095 API Commands B-27
daqSetOption
DLL Function daqSetOption(DaqHandleT handle, DWORD chan, DWORD flags, daqOptionType optionType,
FLOAT optionValue);
C daqSetOption(DaqHandleT handle, DWORD chan, DWORD flags, DaqOptionType optionType,
FLOAT optionValue);
Visual BASIC VBdaqSetOption&(ByVal handle&, ByVal chan&, ByVal flags&, ByVal optionType&, ByVal
optionValue!)
Delphi daqSetOption(Handle:DaqHandleT; chan:DWORD; flags:DWORD; optionType:daqOptionType;
optionValue:FLOAT)
handle The handle to the device for which to set the option
chan The channel number on the device for which the option is to be set
flags Flags specifying the options to use.
optionType Specifies the type of option.
Parameters
optionValue The value of the option to set
Returns DerrNoError No error
See Also daqAdcExpSetChanOption,
Program References PULSEEX1.C, MULTEX1.C, FREQEX1.C, DAQEX.FRM (VB), DAQEX.PAS (Delphi)
Used With All devices
Description
daqSetOption allows the setting of options for a device’s channel/signal path configuration.
chan specifies which channel the option applies to.
flags parameter specifies how the option is to be applied.
optionType specifies the type of option to apply to the channel.
optionValue parameter specifies the value of the option.
Note: For more information regarding optionValue and optionType refer to page B-32, Table 8.
Note: The following information does not apply to Personal Daq/54.
daqSetOption must be used to properly configure Personal Daq’s frequency input and pulse count channels. To configure frequency input
and pulse count channels, the following option types need to be specified for each frequency input/pulse count channel in the scan
sequence:
DcotpDaqPulses : Configures the specified channel as a pulse count channel.
DcotpDaqRising : Configures the rising flag for the pulse channel.
DcotpDaqDebounceTime : Configures the debounce time for the frequency/pulse channel.
The following options must also be specified to configure frequency input channels:
DcotpDaqMinFreq : Configures the minimum frequency range for the specified channel.
DcotpDaqMaxFreq : Configures the maximum frequency range for the specified channel.
DcotpDaqFreqRes : Configures the resolution of the specified frequency channel.
DcotpDaqOverrangeProtect: Enables the overrange protection mode.
daqSetTimeout
DLL Function daqSetTimeout(DaqHandleT handle, DWORD mSecTimeout);
C daqSetTimeout(DaqHandleT handle, DWORD mSecTimeout);
Visual BASIC VBdaqSetTimeout&(ByVal handle&, ByVal mSecTimeout&)
Delphi daqSetTimeout(handle:DaqHandleT; mSecTimeout:DWORD)
handle Handle to the device for which the event time-out is to be set Parameters
mSecTimeout Specifies time-out ( ms ) for events
Returns DerrNoError No error
See Also daqWaitForEvent, daqWaitForEvents
Program References None
Used With All devices
Description
daqSetTimeout allows you to set the time-out for waiting on a single event or multiple events. This function can be used in conjunction
with the daqWaitForEvent and daqWaitForEvents functions to specify a maximum amount of time to wait for the event(s) to be
satisfied.
The mSecTimeout parameter specifies the maximum amount of time (in milliseconds) to wait for the event(s) to occur. If the event(s) do
not occur within the specified time-out, the daqWaitForEvent and/or daqWaitForEvents will return.