COMM_TRecv

Description

Receive binary data from a serial port within a certain time.

Syntax

RetValue = COMM_Recv(hComm, NBytes, VariableBuffer, TimeOutInMS)

Returns

Number.

If function time out RetValue = -1 else RetValue = 0

Parameters

Name	Type	Optional	Meaning
hComm	Number	No	File number used by the COMM_OPEN statement to open the communications port.
NBytes	Number	No	The number of bytes to read from the open port.
VariableBuffer	Variable	No	A single string variable that will hold the received data from the serial port.
TimeOutInMS	Number	No	Time out in milliseconds

Remarks

Retrieve the NBytes number of bytes from hComm, placing the results in VariableBuffer.

Program execution will halt until NBytes bytes are available in the receiving queue or TimeOutInMS is reached.

Restrictions