Delta DVW-W1I2-E1 Series User Manual page 28

Configuring stop bit for serial port. Optional values include 1 or 2.
Baud rate
Configuring baud rate for serial port. Optional values include 2400,
4800, 9600, 19200, 38400, 57600, 115200.
Station ID
Displays the station ID of the device. The station ID of RS-485 is 247.
TCP keepalive time
Configure DVW device in idle TCP connection to setup TCP
keep-alive time. When the time is "0", the connection will stay open.
Response timeout
Others
DVW device waits for serial port response timeout.
Retry
Setup the number of retry when response time reaches timeout.
MODBUS exception
When device reaches response timeout, exception code may be sent
to client.
Mapping slave ID
Setup slave ID mapping table.
-- Slave ID range: Input actual station ID range.
-- Map ID range: Input virtual ID range that can be identified by DVW
Slave mode
device.
Since MODBUS TCP does not contain actual serial port messages,
therefore, we use different map ID section to determine each port.
Requests need to be set within the map ID range in order to forward to
the corresponding serial ports, the station ID will also be converted.
Enabled
Set forward message to enable or not enable.
Station ID
Assign the station ID received from the serial port.
Master
Map destination station ID
mode-
Forward Set the corresponding destination station ID.
table
Destination IP
Set the IP address of MODBUS TCP server.
Destination TCP port
Set the interface for MODBUS TCP server.
3.3.1.2 RS-232 gateway

MODBUS ASCII / RTU Slave
In this mode, the DVW series serve as MODBUS TCP server. When the device receives client's MODBUS
request, it is packed into MODBUS ASCII/RTU protocol and corresponding serial ports can be confirmed
base on the map ID. Also, MODBUS ASCII/RTU master can forward request to slave through DVW series.
Description
Ch ap te r 3 Fu nc tion G uide
Default value
1
9600
N/A
30
3000
3
Enabled
None
None
None
None
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