Advantech EKI-1361, Руководство пользователя

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53 EKI-1361/EKI-1362 User Manual
Chapter 5
W
eb-Based
C
onfiguration
 Round-Robin Mode
Enabling “Response Timeout” parameter, the EKI device will operate in “Round-
Robin mode”. Each serial port supports up to five simultaneous connections, so
multiple hosts can transmit/receive data to/from the same serial port simultane-
ously. Every host can transmit data to the same serial port simultaneously, but
the EKI device will process the data communication in order. The EKI device will
process the first host’s request and reply the response to the first host. The EKI
device serial device server can determine the end of the serial acknowledge-
ment via response timeout. When EKI device serial device server receives noth-
ing 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 EKI device can trans-
mit data more efficiently. Disabling the Frame Break function, the EKI 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 EKI device
just processes this command. Enabling “Frame Break”, if the serial port idle is
longer than the “Frame Break” period, the EKI device will assume the communi-
cation is completed and continue the next host’s query. This is an efficient way
to reduce the waiting time and improve the performance.
 Auto Connect Peer IP
If enabling this option, EKI device will connect to TCP/IP which are set at Peers
page automatically after boot up.
 Peer Number
Set the number of network device which you want to connect. You can set max-
imum sixteen network devices which you want to connect. You need to fill out
the IP Address and Port (including local port and peer port) of network devices
which you want to connect.
 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 four options to set the data
packing: by data size (Byte), by time interval (ms), by character timeout (4
Bytes), or by end of character.