ADLINK PCI-8164 - Manual (Page 270)

258 Function Library
@ Argument
CardNo: Designated card number
Ch_No: Designated channel number 0 - 5
Value: On-Off Value for output
X Value =0, output OFF
X Value =1, output ON
dio_status: Digital output status
X bit0-bit5 for channel 0 - 5, respectively
@ Return Value
ERR_NoError
ERR_DioNoError