https://forge.codesys.com/forge/talk/Engineering/thread/bbc6d77ac2/2021-08-15T10:43:01.364000ZRecent posts to How to read the status of one Modbus Slave in the codesys program2021-08-15T10:43:01.364000Z2021-08-15T10:43:01.364000Zpruwetbehttps://forge.codesys.com/u/pruwetbe/https://forge.codesys.comaa1edab3c6e5fad0d3772cc1da7635045bb04a95

<div class="markdown_content"><p>ok i finally found it through the IoConfig_Globals categorie</p></div>

2021-08-15T10:42:57.785000Z2021-08-15T10:42:57.785000Zpruwetbehttps://forge.codesys.com/u/pruwetbe/https://forge.codesys.com1bd539b4acda4dcb8ae8af652d9112543b4c548a

<div class="markdown_content"><p>ok i finally found it through the IoConfig_Globals categorie</p></div>

2021-08-15T10:33:05.223000Z2021-08-15T10:33:05.223000Zpruwetbehttps://forge.codesys.com/u/pruwetbe/https://forge.codesys.com4e51fc5d7bc31615505b52d72e8054b1d95c54d0

<div class="markdown_content"><p>Hello,<br/> I have several modbus slave connected on RS485 using A Modbus_COM Master and Modbus slave.<br/> The communication is working well but i would like to change the display on the HMI for the related value when the communication is broken.</p> <p>I can see the structure associated to my slave online in the codesys but i would like to use the conteny of this structure in the program.<br/> When i am offline, the variable name is not visible (only ($Device_name) appear<br/> When i am online his name is Device.Application.Modbus_slave_AQ_10 where Modbus_slave_AQ_10 is the bame of the device in the Codesys hardware structure.</p> <p>Do I need to map the diagnostic to another application variable to be abale to get the status in the program?</p></div>