COM.Open (FB; Prefix como)

By use of this function block of the CAA_SerialCom.library a COM port can be opened and configured. The availability of ports depends on the hardware. The configuration of a serial interface is effected by the input pParameterList. The pointer pParameterList has to be assigned to an array of COM.PARAMETER comprising all configuration parameters required by the COM interface. udiListLength indicates the number of configuration parameters.  

Input:

xExecute

BOOL

see: Guidelines for CAA libs

udiListLength

UDINT 

Number of parameters contained in list

pParameterList

CAA.PVOID

Pointer on list of COM parameter values (COM.PARAMETER)

Output:

xDone

BOOL

see: Guidelines for CAA libs 

xBusy

BOOL

see: Guidelines for CAA libs

xError

BOOL

 see: Guidelines for CAA libs

eError

COM.ERROR 

Error ID

hCom

CAA.HANDLE

Handle of  COM interface