Transmit Status Frame - 0X8B - Digi DigiMesh XBee S2C User Manual

Operate in API mode

Transmit Status frame - 0x8B

Description
When a Transmit Request (0x10, 0x11) completes, the device sends a Transmit Status message out of
the serial interface. This message indicates if the Transmit Request was successful or if it failed.
Note Broadcast transmissions are not acknowledged and always return a status of 0x00, even if the
delivery failed.
Format
The following table provides the contents of the frame. For details on frame structure, see
specifications.
Frame data
fields Offset Description
Frame type 3
Frame ID 4
16-bit 5
destination
6
address
Transmit retry 7
count
Delivery
8
status
Discovery 9
status
Example
In the following example, the destination device reports a successful unicast data transmission
successful and a route discovery occurred. The outgoing Transmit Request that this response frame
uses Frame ID of 0x47.
Frame Fields
Start delimiter
XBee S2C DigiMesh 2.4 User Guide
0x8B
Identifies the serial interface data frame being reported. If Frame ID = 0 in
the associated request frame, no response frame is delivered.
The 16-bit Network Address where the packet was delivered (if
successful). If not successful, this address is 0xFFFD (destination address
unknown).
The number of application transmission retries that occur.
0x00 = Success
0x01 = MAC ACK failure
0x02 = Collision avoidance failure
0x21 = Network ACK failure
0x25 = Route not found
0x31 = Internal resource error
0x32 = Internal error
0x74 = Payload too large
0x75 = Indirect message requested
0x00 = No discovery overhead
0x02 = Route discovery
Offset Example
0 0x7E
Frame descriptions
API frame
134