USR-M511User Manual Technical Support:
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Jinan USR IOT Technology Limited
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8
2.
Product Functions
This chapter introduces the functions of USR-M511 as the following diagram shown, you can get an overall
knowledge of it.
Serial
Port
Device
Network
Modbus Master
RTU/ASCII
Modbus Slave
RTU/ASCII
TCP
Client
TCP
Server
Modbus Slave management
Serial port
packaging
Network requesting
commands
AT Command Mode
Serial AT command
Parameter Query/Set
Serial
port
Keep-Alive
Serial port
packaging
Serial Port
Device
Type(Master
or Slave)
Periodically querying by
commands on serial side
Periodically querying by
commands on network side
Sending read/write
commands
1
1
1
Protocol
Conversion
1
1
1
Identity packet
USR Cloud
1
Modbus storing
and dispatching
1
Modbus Slave status
dispalying
Figure 7 Product Functions diagram
2.1. Basic Functions
2.1.1. Static IP/DHCP
There are two ways for module to get IP address: Static IP and DHCP.
Static IP: Default setting of module is Static IP and default IP is 192.168.0.7. When user set module in Static IP mode,
user need set IP, subnet mask and gateway and must pay attention to the relation among IP, subnet mask and
gateway.
DHCP: Module in DHCP mode can dynamically get IP, Gateway, and DNS server address from Gateway Host. When
user connect directly to PC, module can’t be set in DHCP mode. Because common computer does not have the
ability to assign IP addresses.
