Measurement Computing Personal Daq rev.6.0 - Manual (Page 156)

B-24 API Commands Appendix B, 887095 Personal Daq User’s Manual
daqIOWriteBit
DLL Function daqIOWriteBit(DaqHandleT handle, daqIODeviceType devType, daqIODevicePort devPort,
DWORD whichDevice, daqIOExpansionPort whichExpPort, DWORD bitNum, BOOL bitValue);
C daqIOWriteBit(DaqHandleT handle, DaqIODeviceType devType, DaqIODevicePort devPort,
DWORD whichDevice, DaqIOExpansionPort whichExpPort, DWORD bitNum, BOOL bitValue);
Visual BASIC VBdaqIOWriteBit&(ByVal handle&, ByVal devType&, ByVal devPort&, ByVal whichDevice&,
ByVal whichExpPort&, ByVal bitNum&, ByVal bitValue&)
Delphi daqIOWriteBit(handle:DaqHandleT; devType:daqIODeviceType; dvPort:daqIODevicePort;
whichDevice:DWORD; whichExpPort:daqIOExpansionPort; bitNum:DWORD;
bitValue:longbool)
handle Handle of the device to perform an IO write to
devType IO device type
devPort IO device port selection
whichDevice IO device selection
whichExpPort IO device expansion port address
bitNum Bit number to write
Parameters
bitValue Bit value to write (TRUE – high, FALSE - low)
Returns DerrNoError No error
See Also daqIOWrite, daqIORead, daqIOReadBit
Program References DIGEX1.C, DAQEX.FRM (VB), DAQEX.PAS (Delphi)
Used With All devices except Personal Daq/54
Description
daqIOWriteBit allows you to write a specified bit on the selected device and port. The write operation will write the specified bit value to
the bit selected. The selected bit, specified by the bitNum parameter, corresponds to the channel on the port for the IO to be driven. The
bitValue
parameter should be set to TRUE to drive the channel to a high state or FALSE indicating a low state.
daqOnline
DLL Function daqOnline(DaqHandleT handle, PBOOL online);
C daqOnline(DaqHandleT handle, PBOOL online);
Visual BASIC VBdaqOnline&(ByVal handle&, online&)
Delphi daqOnline(handle: DaqHandleT; var online: longbool)
handle Handle of the device to test for online Parameters
online Boolean indicating whether the device is currently online
Returns DerrNoError No error
See Also daqOpen, daqClose
Program References None
Used With All devices
Description
daqOnline allows you to determine if a device is online. The device handle must be a valid device handle which has been opened using
the daqOpen function. The online parameter indicates the current online state of the device (TRUE - device online; FALSE - device not
online).