Modes And Operating Modes - Siemens Simatic RTU303xC Series Operating Instructions Manual

Figure 1-5
When using the IEC protocol, the RTU can also communicate with a redundantly configured
master.
1.3

Modes and operating modes

Modes
The modes of the RTU are not configured explicitly but result from the configuration of the
communications partner and the existence of an SD card.
The RTU can be operated one or both of the following modes:
TeleControl
In the "TeleControl" mode, the RTU can send process data via the mobile wireless network
or via the LAN interface and an external router to a master station (see also "Communication
mode" below).
This mode is adopted when a communications partner (master station) is configured.
As an option, process data can be stored on an SD card. To do this logging must be enabled
in the WBM in "Operating mode".
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06
Communication of the RTU with an IEC master station
Application and functions
1.3 Modes and operating modes
21