https://forge.codesys.com/forge/talk/Engineering/thread/0110edbb9b/2020-02-27T14:33:37.511000ZRecent posts to Modbus loses Connection when Slave goes down and never reconnect2020-02-27T14:33:37.511000Z2020-02-27T14:33:37.511000Zmikeardyhttps://forge.codesys.com/u/mikeardy/https://forge.codesys.com21bf6a311c72b389d6de2d49bb78407890cdbaf3

<div class="markdown_content"><p>thank you</p></div>

2020-02-27T14:33:36.166000Z2020-02-27T14:33:36.166000ZJAPIBhttps://forge.codesys.com/u/japib/https://forge.codesys.comb038706923a486d293b2d8a4b07b23ad649057fc

<div class="markdown_content"><p>Into the setting screen for the master, there is a checkbox called "auto-restart communication".<br/> If it is checked : After a communication error, CODESYS automatically confirms the error and attempts to continue executing the Modbus command.<br/> BR</p></div>

2020-02-27T14:33:35.697000Z2020-02-27T14:33:35.697000Zmikeardyhttps://forge.codesys.com/u/mikeardy/https://forge.codesys.comab739f6f0697353d303a2e5ad012bccb3464ccce

<div class="markdown_content"><p>Hi.<br/> Following suggestion on l <a class="" href="https://forum.codesys.com/viewtopic.php?f=11&amp;t=8536" rel="nofollow">viewtopic.php?f=11&amp;t=8536</a> l I have been able to connect my PC running Codesys Win x64 and an Arduino Modbus Slave. Devices exchange data correctly. I faced a critical result when I tried to download a new firmware on Arduino (because Arduino stops to execute code and goes in programming mode) or disconnect and reconnect Ethernet cable: the partners did not establish again the data exchange loosing the link at logical level, I think. Is there a way to diagnose in a POU the Modbus status? A way to force a reconnection in case of error?<br/> Thanks.</p></div>