Siemens Simatic RTU303xC Series Operating Instructions Manual page 214

Configuration (WBM)
4.23 Telecontrol
● Connected since (dd:hh:mm:ss)
Duration of the existing connection to the communications partner.
● Only for IEC 60870-5-104 or DNP3 and enabled redundancy:
– Connection to master station (redundant)
– Address of the master station (redundant)
Send buffer
Here, data on the memory occupation of the send buffer (frame memory) of the RTU is
displayed.
The values of tags configured as an event are saved in the send buffer. You specify whether
a tag is transferred as an event on the page "TeleControl" > "Data points" with the "Type of
transfer".
● Send buffer - current level
Current fill level of the send buffer
● Send buffer - average level
Average fill level of the send buffer over the last 16 communication cycles
Data transferred by events is not taken into account here
● Send buffer - highest level
Highest fill level of the send buffer reached since the last startup of the RTU.
● Number of lost data frames
Number of data frames that due to connection disruptions or a full send buffer could not
be sent since the last startup of the RTU.
● Reset statistics
Resets all the counters on this page to zero.
214
Indicates whether a connection to the communications partner exists.
Configured IP address of the communication partner in the master station.
Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC