Ethernet Adaptor 01-103
Sparr Electronics Ltd., Bangalore
19
7.3.7. Accept serial data when not connected.
This setup is basically to Enable or Disable the EAD to buffer the serial data when there
is no TCP Connection to the Server. The maximum buffer size is dependent on the value
set in Rx Buffer set under Serial configuration.
Default Setting is Enable
.
7.3.8 Number of Characters in a Packet
This option allows user to set the number of characters EAD should collect from Serial
Port and then Packetizes to send to Server. This is useful in situation where there is a set
string of characters arrive from Serial port regularly for sending to Server.
The Default
value is 254
. This works in conjunction with the option of Pack Data when it is enabled.
It will allow number of characters in a packet range must be 1 to 254.
7.3.9. Connection Inactivity Timeout.
Use this parameter to set inactivity time out. The connection is dropped if there is no
activity on the serial or LAN side after the set time expires. The range of selection is from
01 to 65535 Seconds.
Default 300 (Three hundred Seconds).
7.3.10. Disconnect Active Connection on Data.
When EAD is connected to the remote server, then user can disconnect the EAD TCP
connection by sending the Disconnect character programmed from the Serial Port.
Disconnect character should be in HEX, from
00 – FE
.
FF
is not allowed. Maximum 6 hex characters are allowed.
Example: -
A1EFAD1123BD
The default setup is 000000000000
, which is for Disable.
Note:
1. This is operational only when EAD makes outgoing connection to the Server.
2. Do not use 00 as character in the string.
7.3.11. Disconnect Active Connection on DSR.
When EAD is connected to the remote server, then user can disconnect the EAD TCP
connection by sending the DSR (Data Set Ready) signal.
Default Setting is Disable.
7.3.12. Packet Data
Some applications require the serial data to be collected and sent to server as fixed
number of Characters. In this case EAD can receive the serial data and encapsulate them
in a single Packet and send the same in the LAN so that the there is always a sync
between the serial device and the PC in the LAN. This option by
Default is Disable
and
can be Enable on need. If it is Enabled we can set the input characters using number of
input characters in packet parameter. Refer 7.3.8