Black Box LES402A, LES404A, LES401A Configuring the Serial Server Properties, Page, Force Transmit

Chapter 6: Configuring the Serial Server Properties

Force Transmit

This field allows the user to set a maximum time limit between transmissions of data. The value set in this field multiplied by 100 ms determines the Force Transmit time. When the elapsed time reaches the time configured in this field, the TCP/IP protocol will pack the data currently in the serial buffer into a packet and send it out the Ethernet port.

Port Status

This field indicates whether a serial port is connected via the Serial Server to a virtual COM port of a device on the network.

TCP/UDP Port

This sets the port number for connection. The default port number for the 1-Port Industrial Serial Server serial port is 4000. The default port numbers for serial ports 1 and 2 are 4000 and 4001.

In all modes of operation, Direct IP or Virtual COM, the port number set in the Server Properties menu must match the Virtual COM or socket software port settings.

NOTE: Example: The Virtual COM default setting is TCP/UDP Port 4000. If the port # property is changed to 4001, the virtual COM port will have to be changed to 4001. The hardware settings can be changed from the Serial Server Manager or Console Configuration Menu. The Virtual COM port setting can also be changed within the Device Manager of the computer on which it is installed.

Serial Port Mode

Serial Port Mode allows configuration of the serial server for the following modes of operation:

•Console—When this mode is selected and the server is updated, a PC running a communications program such as

HyperTerminal can communicate with the Serial Server via the Console Mode serial port (Port 1 of each Serial Server), displaying the Server Properties screen and enabling configuration of the server and its ports.

•Upgrade—When this mode is selected and the server is updated, firmware can be uploaded into the Serial Server via the

Console Mode serial port or a virtual COM port mapped to the number of the Console Mode serial port.

•Default—When this mode is selected and the server is updated, it will revert the server to its default configuration.

•RS-232—When this mode is selected and the server updated, the selected serial port will become an RS-232 serial port on the server.

•RS-422—When this mode is selected and the server updated, the selected serial port will become an RS-422 serial port on the server.

•RS-485H—When this mode is selected and the server updated, the selected serial port will become a two-wire, half-duplex

RS-485 serial port on the server.

•RS-485F—When this mode is selected and the server updated, the selected serial port will become a four-wire, full-duplex

RS-485 serial port on the server.

Connection At

When the Connection Mode field is set to Client or Client (no heartbeat), this field becomes active, allowing the Serial Server (acting as a client) to connect to the server either on Power up or on Data Arrival (first character arriving).

Max Connection

This field allows the user to configure the Serial Server to have up to eight TCP connections.

Remote IP Address

This is a security feature activated by entering the IP address of the desired client. The Serial Server will only communicate with the listed IP address and all other requests for connection will be filtered out. The Serial Server must be set up as a TCP or UDP Server to use this feature. The default setting is 255.255.255.255.

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