IDEC MicroSmart Pentra - Manual (Page 152)

13: T ROUBLESHOOTING
13-26 W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278
Troubleshooting Diagram 19
Is a communication error
displayed when monitoring is
started on WindLDR?
WindLDR does not communicate
with PLC via USB.
Is "IDEC PLC USB Port
(COMx)" listed in Device
Manager on the PC?*
Is error message “Unable to
open the COM” displayed when
WindLDR starts monitoring?
Carry out the steps 1 and 2 below and try
again.
Step 1: Check the cabling
Disconnect and reconnect the USB cable
connecting the PC and the PLC.
If the PC and the PLC are connected via a
USB hub, connect the PC and the PLC
directly using a single USB cable.
Step 2: Check communication settings
Open the Communication Settings dialog
box in WindLDR. Select USB and uncheck
the Use HGxG Pass-Through check box.
Restart the PC and try again.
*Confirmation procedure:
1. Right-click on My Computer and select
Properties.
2. In the System Properties dialog box,
select the Hardware tab, and click Device
Manager.
3. All available communication ports are
displayed under Ports (COM & LPT).
Is the problem solved?
Replace the USB cable and try again.
Is the problem solved?
Call IDEC for assistance.
The USB port of the connected FC5A is
not recognized.
Install or update the driver, and then try
again.
Terminate the Pass-Through Tool,
WindO/I-NV2, and other applications
that may use COM port, and then try
again.
END
YES
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