PC-DMIS 2021.2 Object Library
OpenCommConnection Method
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port: The comm port to open. Required.

baud: The baud rate at which to communicate with the port. Optiona. Default is PCD_BAUD_9600.

parity: Optional. Default is PCD_NOPARITY.

Data: Data Bits. Optional. Default is PCD_DATA8.

stop: Stop bits. Optional. Default is PCD_ONESTOPBIT.

flow: Flow control. Optional. Default is PCD_RTSCTS.

PCDLRN ActiveX DLL > OldBasic Object : OpenCommConnection Method

Description

Opens a connection to the specified comm port.

Syntax

Visual Basic
Public Function OpenCommConnection( _ ByVal port As Long, _ ByVal baud As PCDBAUD, _ ByVal parity As PCDPARITY, _ ByVal Data As PCDDATABITS, _ ByVal stop As PCDSTOPBITS, _ ByVal flow As PCDHANDSHAKE _ ) As Long

Visual Basic

Public Function OpenCommConnection( _
   ByVal port As Long, _
   ByVal baud As PCDBAUD, _
   ByVal parity As PCDPARITY, _
   ByVal Data As PCDDATABITS, _
   ByVal stop As PCDSTOPBITS, _
   ByVal flow As PCDHANDSHAKE _
) As Long

Parameters

port

The comm port to open. Required.

baud

Value	Description
PCD_BAUD_110
PCD_BAUD_1200
PCD_BAUD_128000
PCD_BAUD_14400
PCD_BAUD_19200
PCD_BAUD_2400
PCD_BAUD_256000
PCD_BAUD_300
PCD_BAUD_38400
PCD_BAUD_4800
PCD_BAUD_56000
PCD_BAUD_600
PCD_BAUD_9600

The baud rate at which to communicate with the port. Optiona. Default is PCD_BAUD_9600.

parity

Value	Description
PCD_EVENPARITY
PCD_MARKPARITY
PCD_NOPARITY
PCD_ODDPARITY
PCD_SPACEPARITY

Optional. Default is PCD_NOPARITY.

Data

Value	Description
PCD_DATA7
PCD_DATA8

Data Bits. Optional. Default is PCD_DATA8.

stop

Value	Description
PCD_ONE5STOPBITS
PCD_ONESTOPBIT
PCD_TWOSTOPBITS

Stop bits. Optional. Default is PCD_ONESTOPBIT.

flow

Value	Description
PCD_DTRDSR
PCD_RTSCTS
PCD_XONXOFF

Flow control. Optional. Default is PCD_RTSCTS.

Return Type

Long value. 0 if successful, -1 on error.

Description

Syntax

Parameters

Return Type

See Also