We are developing plugin and do you know how to get status of device like online and offline through Item object of MIP SDK 2021R2

MIP
, ,
2

Status Viewer sample might be helpful for you –

https://doc.developer.milestonesys.com/html/index.html?base=samples/componentsamples/statusviewer/readme.html&tree=tree_2.html

The sample is a standalone sample but the methods could be used in a Smart Client plugin.