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I am trying to communicate with a serial device called a DataLink(DL). This DataLink is a protocol converter and a communication controller. The purpose of my program is to configure the DataLink (ie. Set the DL's COM and IRQ ect). My problem is this: When I transmit a message in ASCII or HEX (ie: DLE STX ETX .... OR IN HEX 10 02 03.. ect) the DataLink will reply with an &quot;ACK&quot; or &quot;NACK&quot; meaning a correct or incorrect transfer configuration. I am capable of transfer to the DL but cannot seem to be able to capture its response into VB. I have set the RThreshold to 1. I would like to be able to trap the message in a text box with the use of: MScomm1.Input &nbsp; &nbsp;<br />
&nbsp; &nbsp; &nbsp; &nbsp; Text1.text = Mscomm1.Input<br />
But this isn't working. Can you help me ? I would appreciate it enormly !<br />
Thanks<br />
Jean-Francois: &nbsp; francois@intergate.bc.ca
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I am trying to communicate with a serial device called a DataLink(DL). This DataLink is a protocol converter and a communication controller. The purpose of my program is to configure the DataLink (ie. Set the DL's COM and IRQ ect). My problem is this: When I transmit a message in ASCII or HEX (ie: DLE STX ETX .... OR IN HEX 10 02 03.. ect) the DataLink will reply with an "ACK" or "NACK" meaning a correct or incorrect transfer configuration. I am capable of transfer to the DL but cannot seem to be able to capture its response into VB. I have set the RThreshold to 1. I would like to be able to trap the message in a text box with the use of: MScomm1.Input    
        Text1.text = Mscomm1.Input
But this isn't working. Can you help me ? I would appreciate it enormly !
Thanks
Jean-Francois:   francois@intergate.bc.ca

Serial Communication with MScomm

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.