EKI-1511X/1512X User Manual 24
Round-Robin mode:
After enabling “Response Timeout” parameter, the device 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 server can determine the
end of the serial acknowledgement via response timeout. When the 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.
Frame Break is a very import parameter for Round-Robin mode. This parameter is
the smart way to reduce inefficient waiting time and the device can transmit data
more efficiently. Disabling the Frame Break function, the device will wait “Response
Timeout” period, whether the device have transmitted the data. During this period,
the commands from hosts will be queued and the device just processes this com-
mand. Enabling “Frame Break”, if the serial port idle is longer than the “Frame Break”
period, the device will assume the communication is completed and continue the next
host’s query. This is an efficient way to reduce the waiting time and improve the per-
formance.
Data Pack
Data pack means you can set condition of receiving data from serial port to be a
package according to your application. There are three options to set the data pack-
ing: by data size (Byte), by time interval (ms), or by end of character.
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