E42_AO_GetSafeActions
This function code is used to get the safe action of contiguous A/O channels.
C/C++
int E42_AO_GetSafeActions( int hConnection,
BYTE bytSlot,
BYTE bytStartChannel,
BYTE bytCount,
WORD wAction[ ]);
Visual Basic
Declare Function E42_AO_GetSafeActions Lib "MXIO.dll" (ByVal hConnection As Long, ByVal bytSlot As Byte, ByVal bytStartChannel As Byte, ByVal bytCount 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 16. |
bytStartChannel |
Specifies the starting channel. |
bytCount |
The number of channels to be gets. |
wAction |
An array that stores the contiguous A/O channel's safe action to be get. The wAction[0] represents the value of the starting channel. 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. |