ICP DAS USA PCI-D64HU, User Manual, Page: 100 / 128

CHAPTER
5
Digital Output Functions
The functions in this chapter are provided for digital-input operations.
5.1 d64h_do_writeport
VC6
short d64h_do_writeport (BYTE bCardID, U32 dwValue)
VB6
d64h_do_readport (ByVal bCardID As Byte, ByVal dwValue As Long) As Integer
Description:
This function writes all digital-output with the user-assigned data.
Parameters:
bCardID: The specific Card ID that is configured with the on-board Dip-Switch.
dwValue: The data to be written to digital-output port.
Return Code:
SUCCESS_NO_ERROR: The function returns successfully.
ERROR_INVALID_CARD_ID: There is no active PCI-D64HU card configured with bCardID, or the
given Card ID is invalid (for instance, Card ID is assigned to 254).
ERROR_DO_PIO_WRITE: Cannot write the digital-output port, please call GetLastError() for further
system information.
PCI-D64HU Function Reference Version 28