Help! Regarding the data reading offset issue of the ether cat IO module

endian
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28 May 2025 09:30 #329304 by endian

Replied by endian on topic Help! Regarding the data reading offset issue of the ether cat IO module

Soccer wrote:
When I was testing this signal input, I found that when I turned on LED0, the corresponding IO PIN was lit up at pin number 16. Similarly, the output position was also the same. In summary, the data I currently receive has been shifted by 16 bits. Additionally, I have attached my XML and the test results from Beckhoff (they are all OK). Could someone kind-hearted please tell me why?

Can you share whole config to better understanding please? I am interested in the two masters from your configuration ... how and if it is working? thank you

but defenetely you can not let 32bit lenght for halType="bit" I think ...

<pdoEntry idx="6000" subIdx="01" bitLen="32" halPin="bit-in" halType="bit"/>

Check actual config over, then you will can read active configuration from online slaves... then just copy paste

ethercat pdos -v

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Soccer Kid
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29 May 2025 09:27 #329357 by Soccer Kid

Replied by Soccer Kid on topic Help! Regarding the data reading offset issue of the ether cat IO module

Currently, my configuration is rather messy. I will choose to upload it after I have some time to tidy it up later. The current problem has been largely identified. By analyzing the PDO data from different platforms, I identified some subtle differences. I then reported the bugs to the manufacturer and waited for them to provide a new firmware. Once the new firmware is ready, I will post the detailed differences here.

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