Perle Systems SCS8C DC User Manual

 144

Serial Port Profiles

Configure the following parameters:

Authenticate User Enables/disables login/password authentication for users connecting from the 

network.
Default: Disabled

Enables a per-connection TCP keepalive feature. After the configured number 

of seconds, the connection will send a gratuitous ACK to the network peer, 

thus either ensuring the connection stays active OR causing a dropped 
connection condition to be recognized.
This parameter needs to be used in conjunction with 

 parameter found in the 

, 

,

 

tab. The interval specifies the inactivity period before "testing" the connection. 
Default: Disabled

Enables/disables the display of the message of the day.
Default: Disabled

When enabled, serial data will be buffered if the TCP connection is lost. When 
the TCP connection is re-established, the buffered serial data will be sent to its 

destination.  If using the Trueport profile, data logging is only supported in Lite 

Mode.
The minimum data buffer size for all models is 1 KB. The maximum data 

buffer size is 2000 KB for DS1/TS2/STS8D, all other models are 4000 KB.  If 

the data buffer is filled, incoming serial data will overwrite the oldest data.
Values: 1-2000 KB (DS1/TS1/STS8D) - Default 4 KB
Values: 1-4000 KB (all other models) - Default 256 KB
Default: Disabled
Note: A kill line or a reboot of the IOLAN causes all buffered data to be 

lost.
Some profile features are not compatible with the data logging feature. See 

.

To change the default data logging buffer size see 

.