Contec COM-1PD(USB)H - Step 4 Checking Operations with the Diagnosis Program; What Is the Diagnosis Program; Check Method

2. Setup
16
COM-1PD(USB)H
Step 4 Checking Operations with the Diagnosis
Program
Use the diagnosis program to check that the terminal and driver software work normally, thereby you
can confirm that they have been set up correctly.
What is the Diagnosis Program?
These programs perform some simple checks on the terminal operation. Two programs are provided.
Terminal program (CTstCom.exe)
Data entered from the keyboard is sent directly from the port. The function of the program is
equivalent to the Hyper Terminal program provided with Windows.
Serial Communications Diagnostic Program (CommChk.exe)
Performs actual communications and indicates whether the results are correct or not (error).
The following describes the procedure for testing using the serial communications diagnostic program
(CommChk.exe).
Check Method
Obtain an RS-422A/485 crossed cable. If you do not have a crossed cable, you can perform the test on
a single COM port by using the switch settings on the converter to set communications to loopback.
The figure below shows the switch settings.
SW setting using the cross cable
109
87
6
5
4
321
ON
When using the COM-1PD(USB)H in loopback mode instead of using a cross cable
109
87
6
5
4
321
ON