Goghie

I've done few upgrades from Q03UDE to Q06UDV, and never had the problems. There is the migration guide in this article: https://www.mitsubishifa.co.th/files/dl/Precautions_for_replacing_QnUD(E)(H)CPU_with_QnUDVCPU.pdf

I'm not user of Zenon, but I think it used HASP/CodeMeter. If that is true, you can write PowerShell script that is listing the presence of dongles. With some optimization and python scripting, you can do lot of things after.... But it is much cheaper to give good wage and respect to workers 😉

How did they confirmed it? It is very vague statement. Try to connect with short SFTP cable directly from PC with Kepserver to PLC port, and then run the test.

Modbus communication typically uses the standard port 502. If you intend to comply with this standard, an additional Ethernet module will be required. However, if adherence to the standard port is not critical for your application, you may configure communication using a non-standard port.

It is not weird, it is just old way of doing things by using Pulse Train Output, and event today it is prevalent, usually in China and other price sensitive locations. There is encoder, mounted on servo motor, and there signal that is information when it is in initial position (some sensor). Your motor shaft is most likely rotating the encoder because there is change of encoder value, but the signal for initial position is not happening. You need to read the manual, and there are a lot of pages.

I would try to check servo motor shaft coupling. It could be that servo motor axel is turning but not the drive shaft, so you can not finish the homing sequence.

Just to note that RS232 is limited to 15m, when the speed is 19.2Kbps. For higher speeds it is even shorter.

H0U, H1U and H2U are not Mitsubishi, it is Inovance, also as USB cable.

As I understood, OP used only serial to ethernet converter that is connected on ethernet side directly from output of the converter to the FX5U ethernet port. When PC is used there is the Virtual Serial Port software as middleware, with PLC there is no additional driver that will convert from RTU to TCP, so this configuration is not applicable.

You can post file here, and I will restore it and export it to GxWorks.

.ASC file is way to do it, if you want to convert from GX IEC to GX Works.

Modbus RTU and Modbus TCP/IP are different protocols., so if you are using Serial to Ethernet converter and connecting RTU devices to Mitsubishi Ethernet port, you are doing it wrong. FX5U has both serial and Ethernet ports, and supports both RTU and TCP/IP. Modbus supports multidrop (many slave devices).

RS232 on got has standard pinout: 1-CD, 2-RD, 3-SD, 4-ER, 5-SG, 6-DR, 7-RS, 8-CS, 9 - not connected. It is important also to configure GOT so you can use Barcode function.

Try 6969. For some strange reason on many Altivars it is default password 🙂

Even if you wrote that battery is ok, I think that most likely low battery caused problem and now you are without program.