WattUp

Unknown Ethernet error.. Device U1C\G20480

6 posts in this topic

Let me try to explain this correctly.. 

I have a machine built and coded in Japan, so while I know 90% of the code and functions there are certain parts of the code I have never touched. 

 

Today i started getting an error that is commented as E-Net, so I am assuming its an ETH I/O issue.. but the device is something I have never seen. U1C\G20480  Can someone explain to me what this device is or how it is used? 

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I was able to clear the message by killing power to the entire cell, but still have no idea what device had an error. 

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Which PLC type is are you using system Q ? Which Software ? 

I expect this should be U1\G20480 which would make it BFM address 20480 of the module starting with IO adress 10

 

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Yes this is a Q series plc, using GXDeveloper.  

Do the remote modules have rotary switches for address numbers? I have never touched the remote I/O on this cell, or any Mits system, I am more familiar with Omron and Yaskawa hardware. 

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This depends on the remote IO head station and network used

But mostly yes. 

 

Edited by Gambit

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As Gambit has said, the address  U1C\G20480 translates as Buffer Memory 20480 of the special function module residing at Hex Address 1CO.

I have a special function module that enables the a Q PLC to take its place on an older A series Melsecnet system ,and bumped into this method of addressing when researching the code I needed to write. For example, my module sits at Hex address 2C0 and I have to write U2C\G1024 to access buffer memory 1024.

 

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