How to Download Program from Mitsubishi Data Access Unit FX-10DU-E - Help Needed

Question:

Hello everyone, I am fairly new to this and looking for some help. I recently purchased a new printing equipment with a Mitsubishi PLC and a Data Access Unit. Unfortunately, the screen on the Data Access Unit is cracked, and I am looking to replace the LCD. I have been informed that it contains a program that I should download before attempting any repairs in case I need to replace it entirely. I have the GX Developer software and successfully downloaded the program from the PLC, but I am unable to recognize the Data Access Unit. Is it possible to download a program from this type of unit, and if so, what software or method should I use? Any guidance is greatly appreciated. Thank you - Robert

Top Replies

This FX-10DU unit does not support program access via GX or other IDE. Programming is done using the buttons on the unit, specifically for modifying registers, timers, and counters. The settings are stored in the on-board EEprom. For more information, you can refer to the manual available at http://www.inverter-plc.com/plc/FX_PLC/FX-10DU-e%20Operation%20user%20Manual.pdf.

I once used a software program that only worked on Windows 95 and could only be accessed through a real serial port. However, as technology advanced and laptops no longer came with real serial ports, communication became impossible through serial to USB adapters. The E series HMI's took over, making it nearly impossible to retrieve the program. If you frequently need to modify values in the plc program, you may be able to do so using GX-DEV, although this may not be suitable for beginners. Additionally, if the HMI does not rely on buttons or other input functions to operate, the program will still run passively. My recommendation would be to upgrade to a modern HMI and determine which buttons and values need to be programmed into it for optimal performance.

Thank you for your insights, it all makes sense now. While I noticed that the machine can be programmed through the buttons, I was convinced there must be a more efficient method. The machine can still function without it. I will try to repair it and then consider following Ron's advice to find a suitable replacement unit. Are HMIs interchangeable, excluding differences in appearance and physical buttons? One question I have is regarding the connection between the PLC and the HMI. Does the HMI adjust the PLC's program or does the PLC simply retrieve specific values (such as timers) from the HMI as instructed by the program? My guess is that the program is modified by the HMI, as without it, the PLC would not receive instructions on which values to use. Thank you to everyone for their patience. We all have to start somewhere, right?

In basic terms, an HMI can only modify values in registers stored in the PLC's memory. For example, a timer set in the PLC program as (T1 K10) cannot be changed, while one set as (T1 D1) is adjustable. Through the HMI, a new value can be inputted into D1 to adjust the timer's length. It is important to note that while the HMI can manipulate values, it cannot alter the actual program structure. However, it can perform additional functions such as acting as buttons or loading recipes without modifying the PLC program.

This explanation was extremely beneficial and easy to understand. I truly appreciate the time you took to help me. Thank you so much!

Hey Robert, a warm welcome to the forum! You're definitely on the right track, but as for your Data Access Unit, it's less common that you'd download a program straight from there. It usually functions as a middleman between your human interface and the PLC. What you might have to do is get the display fixed, then make sure it's correctly mapped to the PLC program you downloaded. This process can be quite intricate, and may require specialized service if you're not comfortable tinkering with it. However, some manufacturers have online support or even guided tutorials that can help you if you decide to go ahead by yourself. Best of luck with your repairs!

Hi Robert, welcome to the forum! It's great you've already managed to download the program from the PLC. Regarding the Data Access Unit, there could be various reasons why it's not being recognized. Commonly, it might be a compatibility issue with the GX Developer software, or the Unit may require specific drivers or additional software. The maker of the Data Access Unit is likely your best source of information - get in touch with their tech support if you can. Also, be ready to provide the model number of the Unit which should be labeled somewhere on the equipment. Stay patient and don't hesitate to ask more, we're here to help!

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Frequently Asked Questions (FAQ)

FAQ: 1. Can I download a program from a Mitsubishi Data Access Unit FX-10DU-E?

Answer: - Yes, it is possible to download a program from the Mitsubishi Data Access Unit FX-10DU-E using the appropriate software and method.

FAQ: 2. What software should I use to download a program from the Data Access Unit?

Answer: - To download a program from the Data Access Unit, you can use GX Developer software.

FAQ: 3. I successfully downloaded the program from the PLC but cannot recognize the Data Access Unit. What could be the issue?

Answer: - If you are unable to recognize the Data Access Unit, ensure that the software settings are correctly configured and that the connection is properly established between the unit and your computer.

FAQ: 4. I need to replace the LCD on my Data Access Unit. Should I download the program before attempting repairs?

Answer: - It is recommended to download the program from the Data Access Unit before attempting any repairs or replacements, in case you need to restore it in the future.

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