Advanced Options; Tcp Connection Monitoring - Siemens SIMATIC TeleControl DNP3 Configuration Manual

3.5.2

Advanced options

3.5.2.1

TCP connection monitoring

Ethernet interface > Advanced options > TCP connection monitoring
The settings of the two parameters at the Ethernet interface govern TCP connections via this
interface.
You can adapt the parameters in the properties of the telecontrol connections for each
connection segment.
● TCP connection monitoring time
Function: If no data traffic takes place within the TCP connection monitoring time, the
module sends a keepalive frame to the communication partner.
With the setting 0 (zero), the function is disabled.
Default setting: 180 s
Permitted range
– TIM 1531 IRC
– CP 1243-1 / CP 1243-8 IRC / TIM 3V-IE DNP3 / TIM 4R-IE DNP3
– CP 1542SP-1 IRC
● TCP keepalive monitoring time
After sending a keepalive frame, the module expects a response from the communication
partner within the keepalive monitoring time. If the module does not receive a response
within the configured time, it closes the connection.
With the setting 0 (zero), the function is disabled.
Default setting: 10 s
Permitted range
– TIM 1531 IRC
– CP 1243-1 / CP 1243-8 IRC
– TIM 3V-IE DNP3 / TIM 4R-IE DNP3
– CP 1542SP-1 IRC
Configuration - DNP3
Configuration Manual, 11/2018, C79000-G8976-C508-01
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0...32767 s
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Configuration
3.5 Ethernet interface
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