Robustel R5020 - Page 81

Robustel R5020 User Guide
RT_UG_R5020_v.1.0.2 Mar. 17, 2023 81/167
The window is displayed as below when choosing “Modbus ASCII Router” as the application mode and “UDP” as the
protocol.
Serial Port
Item
Description
Default
Serial Port Application Settings
Index
Indicate the ordinal of the list.
--
Port
Show the current serial’s name, read only.
COM1--
Enable
Click the toggle button to enable/disable this serial port. When the status is OFF,
the serial port is not available.
OFF
Baud Rate
Select from “300”, “600”, “1200”, “2400”, “4800”, “9600”, “19200”, “38400”,
“57600” , “115200” or “230400”.
115200
Data Bits
Select from “7” or “8”.
8
Stop Bits
Select from “1” or “2”.
1
Parity
Select from “None”, “Odd” or “Even”.
None
Flow control
Select from “None”, “Software” or “Hardware”.
None
Data Packing
Packing Timeout
Set the packing timeout. The serial port will queue the data in the buffer and
send the data to the Cellular WAN/Ethernet WAN when it reaches the Interval
Timeout in the field.
Note: Data will also be sent as specified by the packet length even when data is
not reaching the interval timeout in the field.
50
Packing Length
Set the packet length. The Packet length setting refers to the maximum amount
of data that is allowed to accumulate in the serial port buffer before sending.
When a packet length between 1 and 3000 bytes is specified, data in the buffer
will be sent as soon it reaches the specified length.
1200
Server Settings
Item
Description
Default
Application Mode
Select from “Transparent”, “Modbus RTU Router” or “Modbus
ASCII Router”.
 Transparent: Router will transmit the serial data
transparently
 Modbus RTU Router: Router will translate the Modbus RTU
data to Modbus TCP data and sent out, and vice versa
Transparent