Troubleshooting Uart; Usb-Com; How To Switch To Usb-Com - Opticon MDI-4000 Series Serial Interface Manual

4.1.8

Troubleshooting UART

Use this table to find possible solutions to common UART problems.
UART Troubleshooting
Problem
Cannot communicate
No response when
sending command
Nonsensical
characters

4.2 USB-COM

When using the USB-COM interface, make sure the 12-pin FFC cable is connected to the USB
signals. For more information, see
Caution: UART is a standard factory default setting. If the host is using a UART
connection circuit, communication will fail.
4.2.1

How to Switch to USB-COM

When you change the interface to USB-COM, the configuration change persists through a
firmware update.
Use one of these methods to change the serial interface to USB-COM:
•
Send this command:
[X.Z[C01[X.ZZ2
•
Read this 2D menu barcode:
Possible Solutions
•
Make sure communication settings, such as transfer speed and
character format, are correct.
•
Send the Z2 command. Most communication settings do not take effect
until the Z2 command is sent.
•
Verify the handshake setting.
•
Make sure communication settings, such as transfer speed and
character format, are correct.
•
Make sure that the code to be read matches to the character code of
the communication tool.
•
Make sure the communication settings are correct.
•
Check the line-break setting of the communication tool.
"USB-COM Interface Signal" on page
MDI-4000 Series Serial Interface Manual
28.
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