|-7-|-6-|-5-|-4-|-3-|-2-|-1-|-0-|
|---+---+---+---+---+---+---+---|
1: | PDU-type | s | m | a | 0 |
|---+---+---+---+---+---+---+---|
2: | 0 | max seg | max APDU |
|---+---+---+---+---+---+---+---|
3: | invoke id |
|---+---+---+---+---+---+---+---|
4: | Sequence Number | only present if SEG = 1
|---+---+---+---+---+---+---+---|
5: | Proposed Window Size | only present if SEG = 1
|---+---+---+---+---+---+---+---|
6: | BACNet Confirmed Service Choice |
|---+---+---+---+---+---+---+---|
7-n| Service Request |
|---+---+---+---+---+---+---+---|
BACNet Confirmed Service Choice| 0x05 | Subscribe COV |
| 0x0C | Read Property |
| 0x0E | Read Property Multiple |
| 0x0F | Write Property |
| 0x10 | Write Property Multiple |
| 0x11 | Device Communication Control |
| 0x14 | Reinitialize Device |