USR-N540 User Manual www.usriot.com
Jinan USR IOT Technology Limited 15 / 73 [email protected]
6)
Support USR Cloud
7)
Support Modbus TCP function.
8)
USR-N540 work as TCP Client, it connects to TCP server, Destination IP and port should be cared. The IP can
be device with same LAN, also can be different LAN or cross public network. If it connects to server cross
public network, the server should have public IP.
9)
USR-N540 work under TCP Client, It connects to the target IP/Port automatically, will not accept other
connection request.
10)
As TCP Client, need to set USR-N540’s local port number to be “0 then it can visit server with randomized port
number, so that it can solve unsuccessful re-connection in case server judge connection status abnormally
and shield USR-N540 re-connection request.
11)
Test Example
①
Open “USR-TCP232-M4_E45 setup” software.
Set USR-N540 as TCP Client, Remote IP: 172.16.11.11 Remote port: 8234
Notes: Default IP address and type is static IP at 192.168.0.7. But in order to keep the device and PC in the
same network segment to make the communication correct so we change IP type as DHCP. Just likes the
following picture.
Click “Save COM1”, and search USR-N540.
Then check if the parameters are correct when USR-N540 is found.
