APDU Parameters
- Last UpdatedJul 07, 2025
- 1 minute read
APDU stands for Application Protocol Data Unit. The APDU settings allow you specify parameters for the actual data packet that is transmitted to the BACnet device.
|
Parameter name |
Description |
Allowable value |
Default value |
|---|---|---|---|
|
AckTimeOut |
Time (in milliseconds) spent waiting for a reply to a message. |
500 - 60000 |
6000 |
|
SegmentTimeout |
Time (in milliseconds) spent waiting for a segment acknowledgment message. |
500 - 60000 |
5000 |
|
Retries |
Maximum number of times request message will be resent due to timeout on a request. |
0 - 10 |
3 |
|
FrameSize |
Maximum frame size. |
50 -1476 |
1476 |
|
MaxSegments |
Maximum number of segments which may be transmitted and/or received in one segmented message. |
1 - 256 |
10 |
|
WindowSize |
Maximum number of segments which can be transmitted before an acknowledgment is sent to the initiator. |
1 - 127 |
5 |