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DATA_ADD/DATA_LEN (MB_MASTER). Modbus RTU.

6/20/2012 1:06 PM	Rate (0)
tintoretto Posts: 2 Rating: (0)	Hi all. I've a question (I am using Modbus RTU for the first time). I want to send and receive another struct (sending struct and receiving struct are in the master and the slave and they are equal). Struct to send is "pedidos-trama" and the struct to receive is "portabobinas". What data would have to allocate data_add and data_len (MB_MASTER) with the example of the picture? Edit: I'm testing and MB_SLAVE tells me the error 8080, but that error does not appear in the manual. What means this error? Thanks, Tintoretto. Attachment capture.jpg (289 Downloads)
tintoretto Posts: 2 Rating: (0)	Last edited by: tintoretto at: 6/20/2012 1:53 PM Last edited by: tintoretto at: 6/20/2012 1:08 PM
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6/21/2012 12:10 PM	Rate (0)
Kaulquappe Posts: 3093 Rating: (324)	Hello Tintoretto, you can find the error code 8080 in table 12-5 of the manual. It means that you use a unknown port number. Regards, Kaulquappe
Kaulquappe Posts: 3093 Rating: (324)
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6/21/2012 8:08 PM	Rate (0)
tintoretto Posts: 2 Rating: (0)	Kaulquappe Hello Tintoretto, you can find the error code 8080 in table 12-5 of the manual. It means that you use a unknown port number. Regards, Kaulquappe Hi Kaulquappe! The unknown port number is the error code 8180. Moreover, the error code 8080 doesn't appear in the manual list. However, I've solved my doubt, and I know what are the values which I've to allocate to DATA_ADD and DATA_LEN. Thanks! Regards, Tintoretto
tintoretto Posts: 2 Rating: (0)
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12/3/2015 5:49 PM	Rate (0)
LaurynasKRP Advanced Member Joined: 10/30/2014 Last visit: 3/14/2025 Posts: 1 Rating: (0)	maybe you can say me what does it mean this error code (8080)? Thank you very much in advance.

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12/11/2017 1:47 PM	Rate (0)
Jen_Moderator Diamond Member Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating: (174)	New question published by AutoGen_6455290 is split to a separate thread with the subject What number should be in the data len field?. Best regards Jen_Moderator

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12/26/2017 7:10 PM	Rate (0)
Jen_Moderator Diamond Member Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating: (174)	New question published by AutoGen_6455290 is split to a separate thread with the subject send MB_MASTER in a continuous and continuous manner. Best regards Jen_Moderator

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