https://forge.codesys.com/forge/talk/Engineering/thread/cc5606dbad/2021-02-03T17:47:07.123000ZRecent posts to EtherCAT SDO Data Read/Write 2021-02-03T17:47:07.123000Z2021-02-03T17:47:07.123000Zsgronchihttps://forge.codesys.com/u/sgronchi/https://forge.codesys.comca94b49b751f6fabdf9ae2aa66abad1e5719ec7b

<div class="markdown_content"><p>IoDrvEtherCAT library.</p></div>

2021-02-03T16:57:05.718000Z2021-02-03T16:57:05.718000Zdsanow92https://forge.codesys.com/u/dsanow92/https://forge.codesys.com5183848ea21043ea003e73d58f9521a9e48eb444

<div class="markdown_content"><p>Where did you find those function blocks, ETCCOsdoWrite, ETCCOsdoReadAccess? </p></div>

2020-11-05T03:05:04.518000Z2020-11-05T03:05:04.518000Zap040https://forge.codesys.com/u/ap040/https://forge.codesys.come1bce7b22d53815e71a1ab9695dc9438cdbb6ad4

<div class="markdown_content"><p>Hello @eschweelinger, I looked and research about it and got the example of it. Now, it has worked and I am able to write/read my object using the <strong><em>ETCCOsdoWrite</em></strong> and <strong><em>ETCCOsdoReadAccess</em></strong> function blocks.</p></div>

2020-11-04T18:16:45.265000Z2020-11-04T18:16:45.265000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.combe873ed50ed97c363740cb6534a852c61020cf7a

<div class="markdown_content"><p>which error does occure and what is windex 16#01 in your slave?</p></div>

2020-11-04T06:34:54.179000Z2020-11-04T06:34:54.179000Zap040https://forge.codesys.com/u/ap040/https://forge.codesys.coma17ef578cd0b6aa9c2e27fc9b337fbcdad929dc7

<div class="markdown_content"><p>Hello,<br/> I want to read/write the acyclic SDO form the EtherCat Slave. So, I am using the below FB to read it. However, it has giving me the error while read it. So, can you help me?.</p> <p>IF SDO_REQ THEN<br/> Read4(xExecute := TRUE, usiCom := 1, uiDevice := 1001, wIndex := 16#01, bySubindex := 16#01, udiTimeOut:= 500); <br/> IF Read4.xDone THEN<br/> abyRead := Read4.abyData;<br/> Read4(xExecute := FALSE);<br/> ELSIF Read4.xError THEN<br/> iState := 32767;<br/> END_IF<br/> END_IF</p></div>