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A-2-11 LD_ReadDi
Description:
Read in the digital value from the 8 channels of isolated DI.
Bit_0=channel_0, bit_1= channel_1,…., bit_7= channel_7. Only 8
channels isolated DI→only 8 bits are enough. This function will return the
current state of DIs. The working mode of DI introduced in Sec.A-2-7
will not take effect on this function.
Syntax:
WORD LD_ReadDi(WORD *wDi);
Parameter:
*wDi: address of wDi
Return:
ActiveError: this board must call LD_CheckBoard first
TimeOut: check board timeout (maybe base address or hardware error)
ActiveError: OK
A-2-12 LD_ReadLatchDi
Description:
Read the latch states of 8 channels isolated DI. Bit_0=channel_0,
bit_1=channel_1,…., bit_7= channel_7. Only 8 channels isolated DI→only
8 bits are enough. This function will return the current state of DIs. The
working mode of DI introduced in Sec.A-2-7 will take effect on this
function.
Syntax:
WORD LD_ReadLatchDi(WORD *wDi);
Parameter:
*wDi: address of wDi
Return:
ActiveError: this board must call LD_CheckBoard first
ISO-LD User’s Manual (Ver :2.4 02/12/04) -----55