3.0 Web Management
CommFront User Manual
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3.5 Advanced Settings
The “Advanced” web management page allows you to set advanced features such as
Modbus RTU to Modbus TCP conversion, Heartbeat Packet, Registry Packet, and short
connection.
Table 5: Default Advanced Settings
Heartbeat Packet Type:
None
Registry Packet Type:
None
Enable Short Connection:
Unchecked
Disable Old Connections:
Unchecked
Clear Cached Serial Data upon TCP/IP
Connection:
Unchecked
Allow Settings via Serial Port:
Unchecked
Enable Modbus RTU <-> Modbus TCP
Unchecked
3.5.1 Modbus RTU to Modbus TCP
When selected, it will turn the DVS-232-2 into a Modbus RTU to Modbus TCP gateway
or a Modbus RTU to Modbus TCP protocol converter. Modbus RTU data received from
the serial port will be converted to Modbus TCP and transmitted over TCP/IP network.
Likewise, Modbus TCP data received from the network port will be converted to
Modbus RTU and transmitted to serial port. This feature works for TCP Server and
TCP Client modes.
3.5.2 Heartbeat Packet
The heartbeat packet (or “keep-alive” packet) can be sent either to a network port
or a serial port. The network heartbeat packet is used for maintaining network
connections and to prevent dead links. It works for TCP client and UDP client modes.
The serial heartbeat packet can be used for routine commands sent to the serial
devices.
-
Heartbeat Packet Type: None, Serial, Network
-
Heartbeat Packet: ASCII string or HEX code