USR-W600 User Manual
Technical Support:
h.usriot.com
Jinan USR IOT Technology Limited
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9
W600 supports ‘Search in LAN’ function: After W600 connecting to an AP, user can send UDP broadcast to a fixed
port to acquire W600’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 W600
.
Step 2: After W600 receiving keyword, if keyword is correct, W600 will enter configuration mode and return IP,
MAC, MID, Version to the device. And W600 will exit configuration mode if no configuration command over 30
seconds after W600 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)
2.4.2.TCP/UDP Client identity packet function
Figure 12 Identity Packet application diagram
When W600 works in TCP/UDP Client mode, user can enable identity packet function. Identity packet is used for
identifying the device when module works as TCP client/UDP client. There are two methods to send identity
packet.
Identity packet will be sent after connection is established.
Identity packet will be added on the front of every data package.
Identity packet can be 6 bytes MAC address identity packet, 4 bytes ID identity packet, user editable identity
packet(less than 32 bytes) or USR Cloud identity packet(only work in TCP Client mode).
2.4.3.Usrlink
When W600 works in AP mode will open a UDP port to receive usrlink commands(Port number 48899, same as
‘Search in LAN’ function and can be changed).
