Introduction; At Command Setting Approach; Network At Command Mode - USR IOT Cortex-M7 Series At Command Manual

1.

Introduction

This document provides a detailed specification and a comprehensive listing for the whole set of AT commands for the ARM
Cortex M7 Series serial to Ethernet converter. This document applies to USR-N510,USR-N520,USR-N540,USR-N580 models.

2. AT Command Setting Approach

2.1.

Network AT command mode

After the device is powered on and starts working,users can send AT commands through local network, that means the USR
products must be in the same subnet with PC or any device that sends AT commands. The syntax and usage of the AT command are
described in details later.
Send WWW.USR.CN strings through UDP broadcast to port 48899(the remote host is set to 255.255.255.255:48899). If the
module and the PC are on the same network segment, the module replies. As shown below.
AT this time, the module has entered the network AT command mode. If multiple devices respond at the same time, you only
need to change the IP address of the remote host to be consistent with the IP address of the device to be set.
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Enter Network AT Command Mode
Figure 1
4
AT command set
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