https://forge.codesys.com/forge/talk/Engineering/thread/b5ed98033d/2020-02-27T13:49:47.745000ZRecent posts to Writing 16 byte SDO over Ethercat2020-02-27T13:49:47.745000Z2020-02-27T13:49:47.745000Zjmfischesserhttps://forge.codesys.com/u/jmfischesser/https://forge.codesys.com26694bb72054c7fbd8c98f998889ccc63f591e8a

<div class="markdown_content"><p>I'm attempting to a write a 16 byte block of data to SDO 2710h (subindex 2) of a Yaskawa Sigma7 Ethercat Servo Amplifier.</p> <p>To accomplish this I'm trying to use the ETC_CO_SDOWrite function block. My parameters are:<br/> usiCom:=1;<br/> uiDevice:=1001;<br/> wIndex:=16#2710<br/> bySubIndex:= 2;<br/> udiTimeout:=5000;<br/> pBuffer:=ADR(my array of 16 USINT)<br/> szSize:=SizeOf(my array of 16 USINT)<br/> eMode:=ETC_CO_AUTO;</p> <p>When I turn on my Execute bit, I get no feedback from the block (Busy, Error, Done all remain false). The block is almost acting like there is no code inside of it.</p> <p>Am I doing this correctly? I have no issues writing shorter SDOs (4 bytes or fewer) using the WriteParameter function block.</p></div>