Serial Server - Delta DVW-W1I2-E1 Series User Manual

De lta Indus tr ia l W ire less D VW-W0 1 I2- E1 Ser ies Us er Man ua l
2. MODBUS RTU Slave: The network port for DVW device operates in MODBUS
TCP Server mode, the RS-485 serial port operates in MODBUS RTU master
mode.
3. MODBUS ASCII Master: The network port for DVW device operates in MODBUS
TCP client mode, the RS-485 serial port operates in MODBUS ASCII slave mode.
4. MODBUS RTU Master: The network port for DVW device operates in MODBUS
TCP client mode, the RS-485 serial port operates in MODBUS RTU slave mode.
Configuring
RS485
_3
Others
Slave mode
Master
mode-
Forward
table

3.3.2 Serial server

The function allows DVW series to connect with the assigned server, while also pack serial port data into
TCP/UDP and send it to the server for TCP or UDP client.
3 - 1 2
Description
Data bit
Displays serial port data bit; the value is fixed to 7 in ASCII protocol,
the value is fixed to 8 in RTU protocol.
Parity bit
Set parity bits for serial ports. Optional values include "none", "odd" or
"even".
Stop bit
Set stop bits for serial ports. Optional values include 1 or 2.
Baud rate
Set baud rates for serial ports. 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
DVW device waits for serial port response timeout.
Retry
Set 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
Set 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
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.
Map destination station ID
Set the corresponding destination station ID.
Destination IP
Set the IP address of MODBUS TCP server.
Destination TCP port
Set the interface for MODBUS TCP server.
Default value
N/A
None
1
9600
N/A
30
3000
3
Enabled
None
None
None
None
502