https://forge.codesys.com/forge/talk/Runtime/thread/e7dc18e123/2020-02-27T17:15:25.257000ZRecent posts to Modbus RTU Master - how to change slave address from program2020-02-27T17:15:25.257000Z2020-02-27T17:15:25.257000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.comc2ecb44749aac25c458e509c079b4931071b2c5b

<div class="markdown_content"><p><em>Originally created by:</em> georgejaniszewski</p> <p>Thank you e.kislov for your assistance.<br/> George.</p></div>

2020-02-27T17:15:24.278000Z2020-02-27T17:15:24.278000Ze.kislovhttps://forge.codesys.com/u/e-kislov/https://forge.codesys.comd2c033ce688ec73bb618754fba6e542dca4815b9

<div class="markdown_content"><p>Hi.</p> <p>Enter name of your component (default: Modbus_Slave_COM_Port) in code editor and use '.' operator to see internal variables and methods.<br/> You can use property SlaveAddress:</p> <p>Modbus_Slave_COM_Port.SlaveAddress := &lt;value&gt;;&lt;/value&gt;</p> <p>You should to call this code also after reboot of PLC because in this case PLC get again "fixed value from the General tab".</p></div>

2020-02-27T17:15:21.513000Z2020-02-27T17:15:21.513000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.com81e55e7c8a138690616462cd3fb2fe642cf6d1c2

<div class="markdown_content"><p><em>Originally created by:</em> georgejaniszewski</p> <p>Hello,<br/> I need to be able to change the Slave Address of the Modbus Slave COM Port object from within the program at runtime.<br/> Usually the Slave address would be set as a fixed value in the General tab of the object, but I need to change it dynamically.<br/> Would you please advise how this can be done.<br/> Thank you.<br/> George Janiszewski.</p></div>