Moxa NPORT 5110-T Manual de usuario descargar pdf (Pagina 40)

NPort 5100 Series Web Console Configuration

5-17

0: Disable the force transmit timeout.

1 to 65535: Forces the NPort 5100’s TCP/IP protocol software to try to pack serial data received during the

specified time into the same data frame.

This parameter defines the time interval during which NPort 5100 fetches the serial data from its internal buffer.

If data is incoming through the serial port, NPort 5100 stores the data in the internal buffer. NPort 5100

transmits data stored in the buffer via TCP/IP, but only if the internal buffer is full or if the Force transmit time

interval reaches the time specified under Force transmit timeout.

The optimal Force transmit timeout depends on your application, but it must be at least larger than one

character interval within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8

data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a character is 10 bits,

and the time required to transfer one character is

(10 (bits) / 1200 (bits/s)) * 1000 (ms/s) = 8.3 ms.

Therefore, you should set Force transmit timeout to be larger than 8.3 ms, so in this case, it must be greater

than or equal to 10 ms.

If the user wants to send a series of characters in the same packet, the serial device attached to NPort 5100

should send that series of characters during a time interval less than the Force transmit timeout for NPort 5100,

and the total length of data must be less than or equal to NPort 5100’s internal buffer size. The serial

communication buffer size for NPort 5100 is 1 KB per port.

Destination IP address 1

Setting Factory Default Necessity

IP address or Domain

Name

(E.g., 192.168.1.1)

None Required

Allows NPort 5100 to connect actively to the remote host whose IP address is set by this parameter.

Destination IP address 2/3/4

Setting Factory Default Necessity

IP address or Domain

Name

(E.g., 192.168.1.1)

None Required

Allows the NPort 5100 to connect actively to the remote host whose IP address is set by this parameter.

ATTENTION

Up to 4 connections can be established

between the NPort 5100 and hosts. The connection speed or throughput

may

be low if one of the four connections is slow, since the 1 slow connection will slow down the other 3

connections.

ATTENTION

The “

Destination IP address” parameter can use both IP address and Domain Name. For some applications,

the

user may need to send the data actively to the remote destination domain

name.

Designated Local Port 1/2/3/4

Setting Factory Default Necessity

TCP Port No. 5011 (Port 1)

5012 (Port 2)

5013 (Port 3)

5014 (Port 4)

Required

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Moxa NPORT 5110-T Manual de usuario Pagina 40

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