https://forge.codesys.com/forge/talk/CODESYS-V2/thread/dafee30000/2020-02-27T22:57:21.896000ZRecent posts to Profinet GDXML file limitation2020-02-27T22:57:21.896000Z2020-02-27T22:57:21.896000ZBobbypointehttps://forge.codesys.com/u/bobbypointe/https://forge.codesys.com4335469622314ed58279c62f25d78586414f5438

<div class="markdown_content"><p>Hi everrybody <br/> I'm using a Parker PLC which is called PAC.<br/> Inside this PLC, I insert a Profinet Slave which driver is done by Codesys 3S (as shown here)</p> <p><strong>Name</strong>: NetX PN Device<br/> <strong>Vendor </strong>: 3S-Smart Software Solutions Gmbh<br/> <strong>Categories</strong>: Profinet IO Device<br/> <strong>Type</strong>:83<br/> <strong>ID</strong>: 0000 0085<br/> <strong>Version </strong>: 3.5.5.0<br/> I put the Xml description file in this post.</p> <p>Inside the file, I have a max of 23 'devices' of 8 words limitation for the Input and Ouptut communication.<br/> It seems that the Siemens PLC (master) has a limitation of 53 devices of 8 words each in Input / Output.</p> <p>I've tried to change by hand this limitation of 23.<br/> Communication works until 30 devices (of 8 words each).<br/> as soon as I set 31, it is not working anymore.</p> <p>Does someone knows why I have this limitation?<br/> It seems to be a cyclic communication, do I have an acyclic channel as well?<br/> If so how can I use it?</p> <p>As it is a 3S device, I hope someone will be able to help me on this topic!</p> <p>Thanks by advance!</p> <p><a class="" href="https://forum.codesys.com//download/file.php?id=1630" rel="nofollow">device.xml <span><span>[68.91 KiB]</span></span></a></p></div>