Digi XBee 3 Cellular LTE-M, User Manual, Page: 281 / 331

API frames Socket Send (Transmit) - 0x44
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide 281
Socket Send (Transmit) - 0x44
Description
A Socket Send message causes the device to transmit data using the current connection. For a non-
zero frame ID, this will elicit a
Transmit (TX) Status - 0x89 frame.
This frame requires a successful Socket Connect - 0x42 frame first. For a socket that is not connected,
the device responds with a Transmit (TX) Status - 0x89 frame with an error. To send data from a
UDP socket that is not connect, use a Socket SendTo - 0x45 frame.
Format
The following table provides the contents of the frame. For details on frame structure, see API frame
format .
Field name
Field
value
Data type Description
Frame type 0x44 Byte
Frame ID Byte A reference identifier used to match
status responses. If set to
0 , the
Transmit (TX) Status - 0x89 frame is
disabled.
Socket ID Byte ID of the socket to send on.
Transmit options Byte bit-field
Reserved
Payload Variable Data to be transferred to the
destination, up to 1500 bytes.