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?*
NO
YES
Is error message
"Unable to open the COM"
displayed when WindLDR starts
monitoring?
YES
Carry out steps 1 and 2 below and try again.
Step 1: Check the cabling
Disconnect and reconnect the USB cable connecting
the computer and the FC6A Series MICROSmart.
If the computer and the FC6A Series MICROSmart
are connected via a USB hub, connect the computer
and the FC6A Series MICROSmart directly using a
single USB cable.
Step 2: Check communication settings
Open the Communication Settings dialog box in
WindLDR. Click the USB tab, and then clear the Use
HGxGUSB Pass-Through check box.
Restart the computer and try again.
*You can check this in Device Manager.
For details, see "Checking the USB Driver"
on page 13-27.
NO
Is the problem solved?
Replace the USB cable and try again.
NO
Is the problem solved?
Call IDEC for assistance.
NO
NO
The USB port of the connected FC6A Series
MICROSmart is not recognized.
Install or update the driver, and then try
again.
YES
Terminate the Pass-Through Tool, WindO/I-
NV2, and other applications that may use
COM port, and then try again.
YES
END
YES
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