XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 41
4. XBee IP Services
The XBee provides services using IP (Internet Protocol) for XBee and other clients on the
network. IP services provide functionality to allow XBee configuration and direct serial
port access. There are two XBee services:
• XBee Application Service
• Serial Communication Service
XBee Application Service
This service primarily provides for XBee configuration. It also provides API compatibility
for customers who have designed around other XBees. It uses UDP to transfer packets
to and from port number 0xBEE. Packets are optionally acknowledged by the service
but retries are not available. An extra header is added to the packet data to define
commands for configuration and serial data transfer. The following sections describe
how this service can be accessed from a local host or network client. C0 and DE are
used to configure source and destination ports for the serial communication service.
The XBee application service uses hard coded port 0xBEE for both source and
destination and there is no option to configure another port.
Note: Do not configure C0 and/or DE to 0xBEE to use the XBee application service.
Doing so will cause an error (AI=42), and the transceiver will neither send nor receive
data.
Local Host
From a local host this functionality is accessed through XBee API frames. There are
remote AT command frames as well as transmission frames. The API frames are listed
as follows:
• TX request: 64-bit (TX64)
• RX indicator: 64-bit (RX64) (This frame is generated by the XBee module.)
• Remote AT command
• General Purpose Memory command
TX64 and RX64 API Frames
The intent of the XBee transmit and receive 64-bit API frames is to provide a
standardized set of API frames to use for a point to multipoint network—a closed
network of XBee Wi-Fi modules. The format of these frames has been standardized to
work with other XBee products, such as the API frames of the 802.15.4 module. Please
note that the XBee Wi-Fi module cannot communicate with an XBee 802.15.4 module.
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