Hello,
I’m using CX-Programmer installed on virtual machine, I was trying to connect
to my PLC Omron connected to eWON cosy 141 via serial port, I selected as io
protocol in the we-browser FINS TCP to FINS Hoslink. Then I followed all the
steps described in the document Remote Access for Omron PLC, but I couldn’t
connect to my PLC. The same issue happened when I used the IO protocol TCP to
serial port (virtual COM).
You followed the instructions listed here?
https://ewon.biz/products/cosy-141-plc-area-omron/omron-0
If so, did you confirm that your serial port is configured to RS232?
Also, do the COM settings match your PLC (baud rate, parity, etc)?
COM setting I did the same thing as mentioned in the image.
How do you configure the serial port to RS232?
Were you able to get your device your port set to serial port RS232 with the instructions you’ve found?
As stated, all the positions should be set to off.
The configuration of the physical serial mode is done by a set of 4 dip switches located on left
side of the unit. The settings of the switches are shown in the table below:
Yes I have done this step thanks.
I am using CX-Programmer on virtual machine and my PLC OMRON is connected via serial port to eWON. my virtual machine has NAT as a network adapter.
Please find below the images of my mapping configuration :
Still didn’t work with those settings. What can be the issue?
Thanks 
If you could provide a backup of your device (including support files) using eBuddy, and upload it here then that would be very helpful as it would allow me to see your device logs and device settings,
I see a distinct error in your event logs:
This error indicates that either your dip switches are not set to RS232 (all off) or your HW MODE is set to Half-Duplex instead of Full-Duplex.
Please confirm that your dip switches are all off (set to RS232) and that your HW mode is set to Full Duplex.
Yes my dip switches are set to RS232 (all off) and my HW MODE is set to Full Duplex NO Handshaking. Still can’t connect to the PLC.
Your node is 3, did you set your serial node to 3 in the Cosy 141?
Edit - typo
Yes I already changed it in the Cosy 141
I’d like to schedule a teamviewer session if possible so we can take a look at your device further.
I will send you a private message that you can respond to with your phone number
To close the loop on this thread.
The issue ended up being an errant serial configuration. The PLC was not communicating over RS232 as expected as well as a few line parameters being incorrect. After resolving the communication settings the issue was resolved.
It is important to note, when working with serial devices, all line paramters must match 100% between the eWON and the desired LAN device.
I have done this step to, thanks.
I am using CX-Programmer on virtual machine to and my PLC is connected via serial. But i am using serial to ethernet connector for connection.
It is supported by the Linux system and Windows.
