Solution : https://service.sap.com/sap/support/notes/84225 (SAP Service marketplace login required)
Key words : 
/usr/sap/<sid>/dvebmgsinst/work, processes ongoing upload requests, program 'codnld' downloads data, user <sid>ofr, additional key words, plant data collection, call coupld parm, solution special features, pp - pdc interface, stream file system
Related Notes : 
       
| 45694 | Transceiver installation | 
| 44103 | Setting up the PDC interface |