Digi XBee 3 Cellular LTE-M, User Manual, Page: 277 / 331

API frames Socket Connect - 0x42
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide 277
Socket Connect - 0x42
Description
Use this frame to connect a socket to the given address and port.
For a UDP socket, this filters out any received responses that are not from the specified remote
address and port.
Two frames occur in response:
1. Socket Connect Response frame : Arrives immediately and confirms the request.
2. Socket Status frame : Indicates if the connection was successful.
It is not permitted to proceed transmitting data on this socket until after a Socket Status frame has
been received, indicating success.
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 0x42 Byte
Frame ID Byte A reference identifier used to match
status responses. If set to
0 , the device
does not send a response.
Socket ID Byte ID of the socket to connect.
Destination port 16-bit big endian
Destination
address type Byte
0: Indicates the destination address
field is a
binary IPv4 address in network
byte order.
1: Indicates the destination address
field is a string containing either a
dotted quad value or a domain name to
be resolved.
Destination
address Variable