File Transfer Via ModBus

I am hoping to transfer data (file size between 70kB~1MB) between two remote locations. I played around with “MB Ethernet Example Master” from ModBus toolkit and was able to successfully send/receive boolean and numeric values.
Here are 2 questions:
For my application, is Ethernet/Modbus the best way? Another way that I thought of was emailing the file, but then again I would have to deal with the mail server…etc.
From what I could gather, the way that a file would be sent would be to read strings from the file, parse the data into packets that won’t overflow the allowable size. On the receiving and it would reconstruct the packets, and save it to a file. Does this model sound about right?

Modbus is not intended at all for sending files between locations. It is intended for sending values or groups of values that are located at specific modbus registers within a device or server. For transferring files either use FTP or look at the examples for TCP/IP file transfer.

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If your query is resolved then please click on “Accept as Solution”
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What type of errors is being generated? Are you trying to save that file on device memory or media card? try moving that file on media card.
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If your query is resolved then please click on “Accept as Solution”
Click on the LIKE on the bottom right if the post deserves credit

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Message was edited by: Achmed Aboulcher

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Hi!!
The problem is at this line:
System.out.println("Copies "+fileIn.read(buffer)+" bytes");
Just comment out this line of code and see the difference. This line of code causes another "read" statement to be executed, but you are writing only the data read from the first read statement which causes approximately half the file to be send to the server.

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Instead of using
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Prax

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Dah•veed

File Transfer Via ModBus

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