User`s manual

46 C/C++ Libraries
72XX Series
User’s Manual
@ Argument
cardNo: Card number to select board
channelNo: PCI_CH0, PCI_CH1, PCI_CH2, or
PCI_CH3
ctrlValue: The control value to set up PA, PB, and PC
as input or output port.
The ctrlValue constants are defined in acl_pci.h and acl_pci.bas.
@ Return Code
ERR_NoError
ctrlValue Port A Port CU Port B Port CL
PORT_OOOO OUT OUT OUT OUT
PORT_OOOI OUT OUT OUT IN
PORT_OOIO OUT OUT IN OUT
PORT_OOII OUT OUT IN IN
PORT_OIOO OUT IN OUT OUT
PORT_OIOI OUT IN OUT IN
PORT_OIIO OUT IN IN OUT
PORT_OIII OUT IN IN IN
PORT_IOOO IN OUT OUT OUT
PORT_IOOI IN OUT OUT IN
PORT_IOIO IN OUT IN OUT
PORT_IOII IN OUT IN IN
PORT_IIOO IN IN OUT OUT
PORT_IIOI IN IN OUT IN
PORT_IIIO IN IN IN OUT
PORT_IIII IN IN IN IN