User guide

BASIC NETWORK
■ Operation Mode: Choose TCP Client.
■ Listen Port: Enter the listening port of the TCP connection.
■ Trust Type: Choose Allow All to allow all TCP clients to connect. Choose Specific IP to allow certain TCP
clients.
■ Max Connection: Set the maximum number of concurrent TCP connections. Up to four connections can be
established at the same time.
■ Connection Idle Timeout: The TCP connection will be terminated if it idles longer then this timeout setting.
This is only available if the Connection Control is set to ON-Demand.
■ Alive Check Timeout: The TCP connection will be terminated if it doesn't receive a response from the alive-
check.
■ Definition: Check to enable the rule.
If choosing Specific IP in Trust Type, enter the IP address range of allowed TCP clients.
UDP Mode
In UDP mode, you can multicast data from the serial device to multiple host computers. The serial device can
receive data from multiple host computers. This mode is ideal for message display applications.
■ Operation Mode: Choose UDP.
■ Listen Port: Enter the listening port of the UDP connection.
■ Host: Click Edit to enter IP address range of remote UDP hosts.
■ Remote Port: Enter the UDP port of peer UDP hosts.
■ Definition: Check to enable the rule.
RFC2217 Mode
In this mode, a standard driver provides Virtual COM function. Any third party driver that supports RFC2217 can be
used to implement Virtual COM on the gateway. The driver establishes a transparent connection between host and
serial device by mapping the IP:Port of the gateway's serial port to a local COM port on the host computer.
■ Operation Mode: Choose RFC-23217.
■ Listen Port: Enter the listening port of the connection.
■ Trust Type: Choose Allow All to allow all hosts to connect. Choose Specific IP to allow certain hosts.
■ Connection Idle Timeout: The TCP connection will be terminated if it idles longer then this timeout setting.
This is only available if the Connection Control is set to ON-Demand.
■ Alive Check Timeout: The TCP connection will be terminated if it doesn't receive a response from the alive-
check.
Modbus
Modbus supports traditional RS-232/422/485 devices and recently developed Ethernet devices. It is used to
establish master-slave/client-server communication between intelligent devices. Modbus networks can
automatically and intelligently translate between Modbus TCP (Ethernet) and Modbus ASCII/RTU (serial) protocols,
allowing Ethernet-based PLCs to control instruments over RS-485 without additional programming. All devices
connected to a single serial port must use the same protocol.
■ Operation Mode: The Modbus Gateway enables conversions between serial and network Modbus
protocols.
30 MultiConnect
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rCell 500 Series Router User Guide