Instruction manual
ControlWave Micro Instruction Manual (CI-ControlWave Micro)
5-22 Service & Troubleshooting Revised Jun-2013
Test Procedure
Use this procedure to test the comm ports.
1. Connect an external loop-back plug to the port on the CPU,
ECOM1, or ECOM2 module to be tested. Valid ports are:
J3 of CPU module for COM1
J4 of CPU module for COM2
J5 of CPU module for COM3
J1 of ECOM1 module for COM4
J2 of ECOM1 module for COM5
J1 of ECOM2 module for COM8
J2 of ECOM2 module for COM9
2. Select Communications on the WINDIAG Main Diagnostics
Menu. The Communications Diagnostic screen opens:
Figure 5-15. Communications Diagnostic Menu
3. Enter 5 in the Number of Passes field.
4. Select a port to test (click to display all available ports).
Note: The port you select must correlate to the port on which you
placed the loop-back plug in step 1.
5. Select 115200 or ALL ASYNC as the baud rate (click to
display all available rates).
6. Click RUN to start the test. At the completion of the test (which
generally takes about 5 seconds), any failed results appear in the
Status field to the right of the RUN button:
TXD RXD Failure