i have start a new project with twido plc (twdlcaa40drf) with 485 card (twdnac485t). the modbus addressing of device is start from 50001. how can i read this five digit word? pls give a example of program of this word and also comm setting of plc

 

What did you mean? Loading and transfer functions? I found this description http://www.automation-course.com/transmission-function-loading-and-transfer-functions/