SerialGate User Guide
47
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Descriptions
connections from socket clients. The difference between TCP
Broadcast and TCP Multiplex is that Multiplex allows each socket to
communicate exclusively. That is, serial data in response are only
transferred to the sender socket.
UDP Server
SerialGate works as a UDP server, waiting for UDP connection from
the client on the network.
Socket number for awaiting connections can be set in ‘Local socket
port’ field.
Once a UDP packet is received to the socket that waits for the
connection, the data is transmitted to the serial port. The data input
from the serial port is put into UDP packets, which eventually are
sent to the client.
UDP Client
When the data is input to the serial port, UDP packets are sent using
the preset IP address and the socket number of the server.
Pair_Master/ Pair_Slave
It extends a serial cable between DTE and DCE to network, and
enables communication not limited to distance. Two devices are
required for this feature and set one to Pair_Master and another to
Pair_Slave. It can be used for serial communication tunneling.
MODBUS ASCII
Connect MODBUS/ASCII SLAVE using serial port and make user of
MODBUS/TCP MASTER feature using LAN port in PC. This feature
enables MODBUS media converter function.
MODBUS RTU
Connect MODBUS/RTU SLAVE using serial port so that the PC
connected to the SerialGate with the Ethernet can be operate as
MODBUS/TCP MASTER. By using this function, it will act as a media
converter.
MODBUS ASCII (Master)
This mode is necessary when connecting MODBUS/TCP master to
MODBUS/ASCII slave.
Connect MODBUS/ASCII slave device to SerialGate.
