User`s manual

User manual Version 1.1

SE5408/SE5416 Multi-port

Serial Server

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Advanced Settings

Fig 24. Advanced Settings: Web Configuration

Time out for receiving TCP data (Default: Disabled): This field specifies how long the serial device

server will wait for a response to “keep alive” packets before closing the TCP connection. The serial

device server checks connection status by sending periodic “keep alive” packets. If the remote host does

not respond to the packet within the time specified in this field, the serial device server will force the

existing TCP connection to close. If this setting is set to 0, the TCP connection will remain open even if

there is no response to the “keep alive” packets.

Serial to Network Packet Delimiter

Packet delimiter is a way of packing data in a serial communication. It is designed to keep packets in track.

Serial device server provides three patterns in parameter setting: (1) packet delimiter by (1) Interval

timeout, (2) Max Byte and (3) Character pattern.

1. By Time – The device will transmit the data when set time interval has reached and no more

data comes in.

2. By Max Bytes – The device will transmit the data when the data queue has reached the set

size.

3. By Character - The device will transmit the data when it sees the set character.

If one or more of the delimiters are selected, data would be transmitted when any of the conditions are

met.

ATTENTION

Packet delimiter by Interval timeout,

This parameter defines how large a gap in serial communication the serial device server will allow

before packing the serial data in its internal buffer for network transmission.

The optional “Internal timeout” transmit time depends on your application, but it must be at least larger

than one character interval within the specified baud rate. For example, assume that the serial port is set