EKI-1511X/1512X User Manual 26
Each port has its own data listen port to accept connected request of other network
device. So, the data listen port can’t be set the same value. You can transmit/receive
data to/from device via the data listen port.
Command Listen Port
Each port has its own command listen port to accept connected request of other net-
work device. So, the command listen port can’t be set the same value. You can use
‘AT command’ to change the port setting via the command listen port. The Command
Listen Port should be different from the Data Listen port.
Data Idle Timeout
The default is 60 seconds. If you want to keep connection continually, you can dis-
able the Data Idle Timeout. Data idle Time is the time period in which the device waits
for data. If the device does not receive data over an established idle time, the device
will disconnect temporarily. When the data comes to the device, it will reconnect auto-
matically. Users do not need to reconnect.
Enable Time Sharing
The device provides Multi-access function through Ethernet connection path. Allow
the maximum of 5 connections to open one serial port simultaneously. In the mode,
all connection has to use the same serial setting. If one serial setting of these con-
nections is different from others, the data communication may operate incorrectly.
There are two operating mode of Multi-access function. One is Normal mode;
another is Round-Robin mode.
Normal Mode
Disabling “Response Timeout” parameter, the device will operate in “normal mode”.
When multiple hosts open the serial port simultaneously, the device only offers con-
trol ability for the first connected host and provides data communication function for
others.
Each serial port supports up to five simultaneous connections, so multiple hosts can
transmit/receive data to/from the same serial port simultaneously. Every host can
transmit data to the same serial port, and the device will also transmit data to every
hosts. When the multiple hosts transmit data to the same serial port at the same time,
the received data from Ethernet and the outputs of serial port are mixed.
When the device receives data from serial port, the data will also be transmitted to
the connected hosts simultaneously.
Round-Robin Mode
Enabling “Response Timeout” parameter, the device server will operate in “Round-
Robin mode”. Each serial port supports up to five simultaneous connections, so mul-
tiple hosts can transmit/receive data to/from the same serial port simultaneously.
Every host can transmit data to the same serial port simultaneously, but the device
will process the data communication in order. The device will process the first host’s
request and reply the response to the first host. The device can determine the end of
the serial acknowledgement via response timeout. When device receives nothing
from serial port after the setting of response timeout, the device will reply the
acknowledgement to the host and then process the next host’s request. While the
connected hosts are more and “Response Timeout” is long, the process time is much
longer.
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