https://forge.codesys.com/forge/talk/Engineering/thread/8bb0399052/2020-02-27T14:15:58.216000ZRecent posts to EDAM 5029 Read (registor/coil) Fail2020-02-27T14:15:58.216000Z2020-02-27T14:15:58.216000Zb.dholahttps://forge.codesys.com/u/b-dhola/https://forge.codesys.com06739554f7dcf64e4f6af75104fdf1f252176162

<div class="markdown_content"><p>Hello Everyone, </p> <p>I am new to the modbus communication. I trying to access the Edam 5029<span>[img]</span>&gt;<strong>Zitat:</strong></p> <div class="codehilite"><pre><span></span><span class="o">[</span><span class="n">code</span><span class="o">][</span><span class="n">img</span><span class="o">][</span><span class="n">/img</span><span class="o">][</span><span class="n">/code</span><span class="o">]</span><span class="w"></span> </pre></div> <p><span>[/img]</span> IO interface using RS485. I am using EASYSYNC usb2-5004-m usb to rs485 converter.</p> <p>I am able to write to a coil or resistor but I am unable to read from coil or resistor. Everytime it is giving me error No response received from remote Unit/Unable to decode response.</p> <p>I have already unable CRC check for EDAM 5029.</p> <p>Here I am attaching my python code and relevent images for your reference.</p> <p>Any guide will be helpful.</p> <p>Thanks &amp; Regards,<br/> Bhavin</p> <p><img alt="IMG: OUTPUT.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4569"/></p> <p><img alt="IMG: EDAM_RS485.jpg" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=4568"/></p> <p><a class="" href="https://forum.codesys.com//download/file.php?id=4567" rel="nofollow">python.py <span><span>[1.3 KiB]</span></span></a></p></div>