AO4K_GetSafeAction
This function code is used to get the safe action for a specific channel.
C/C++
int AO4K_GetSafeAction( int hConnection,
BYTE bytSlot,
BYTE bytChannel,
WORD *wAction);
Visual Basic
Declare Function AO4K_GetSafeAction Lib "MXIO.dll" (ByVal hConnection As Long, ByVal bytSlot As Byte, ByVal bytChannel As Byte, iAction As Integer) As Long
Arguments:
hConnection |
The handle for an I/O device connection. |
bytSlot |
Slot number of the I/O module. The Slot number ranges from 1 to 32. |
bytChannel |
The specific channel to be get. |
wAction |
A pointer that stores the specific A/O channel's safe action to be get. The values are: 0: Safe value 1: Hold last state 2: Low Limit 3: High Limit |
Return Value:
Succeed |
MXIO_OK |
Fail |
Refer to Return Codes. |