Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Directory asdu definition of file transfer (type identification: f_dr_ta_1).
| ASDU Definition | Number of Bytes |
|---|---|
| Type Identification (TYP) | 1 |
| Variable Structure Qualifier (VSQ) | 1 |
| Reason for transmission (COT) | 2 |
| ASDU Public Address (CA) | 2 |
| Information Object Address (IOA) | 3 |
| File name or subdirectory name (NOF) | 2 |
| File length (LOF) | 3 |
| Status of the file (SOF) | 1 |
| File creation time (CP56Time2a) | 7 |
