How to Test a Communication Channel

Introduction

This page describes the procedure for testing a communication channel from the debugging screen.

How to Send a Character String

The following procedure is used to send a character string with a remote device.

Step	Actions
1	Enter the character string to be sent in the Message sent window. Note: Special characters can also be sent. They must begin with the $ character (example using carriage return character: $0D).
2	Click the Send button. Result: If the exchange is correct, a window specifying that the exchange is correct appears. On the remote device display, check whether the string has been transmitted.

How to Receive a Character String

The following procedure is used to receive a character string with a remote device. For efficient operation, you must remember that this test requires stop on reception to be configured either via a special character, or via a silence.

Step	Action
1	Click the Receive button.
2	Send the character string with the frame end character from the remote device. Note: In this example, stop on reception is performed after a carriage return character (16#0D).
3	Display the number of characters and the character string received in the Message received window.