3.2.4.Baud rate synchronization function
When module works with USR devices or software, serial parameters will change dynamically according to
network protocol. User can modify serial parameters by sending data conformed to specific protocol via network.
It is temporary, after resetting module, the parameters will back to original parameters.
3.3.Features
3.3.1.Search in LAN
Figure 18 Search in LAN
W610 supports ‘Search in LAN’ function: After W610 connecting to an AP, user can send UDP broadcast to a fixed
port to acquire W610’s IP address in this AP’s LAN. This function can realize searching module and
communication. Default port is 48899 and default keyword is www.usr.cn.
The whole process as follows:
Step 1: User can send a keyword(default keyword: www.usr.cn, at most 20 bytes) by UDP broadcast
way(broadcast address: xxx.xxx.xxx.255, default port: 48899) on a device which in same LAN as W610.
Step 2: After W610 receiving keyword, if keyword is correct, W610 will enter configuration mode and return IP,
MAC, MID, Version to the device. And W610 will exit configuration mode if no configuration command over 30
seconds after W610 entering configuration mode.
Step 3: After user entering configuration mode, user can send network AT commands to query/set
parameters.(The network AT commands format are same as serial AT commands)
3.3.2. Identity packet function
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