Siemens Simatic RTU303xC Series Operating Instructions Manual page 16

Application and functions
1.1 Application and use of the RTU
● Communication with the control room
If a communications partner is available in the master station, the RTU can send process
data to the control room. The data is transferred either via the mobile wireless service
GPRS or UMTS or via LAN (optionally with an external router).
● Telecontrol protocols
For communication with the master station, the RTU supports the following protocols:
– TeleControl Basic
– SINAUT ST7
– DNP3
– IEC 60870-5-104
You will find detailed information about the protocols in the section Communications
services (Page 25).
● Position determination and time synchronization via GPS (RTU3031C)
The exact position of the RTU can be monitored via GPS and, for example, an alarm can
be triggered if the RTU moves outside a defined range.
High-precision time-of-day synchronization via GPS is also possible.
Configuration examples
You will find configurations of the RTU in the section Configuration examples (Page 17).
Configuration and programming of the RTU in the WBM
Configuration
You configure the parameters of the RTU itself, its inputs and outputs, control functions and
communication parameters conveniently in the Web Based Management (WBM). The WBM
consists of Web pages stored on the RTU. From a configuration PC you connect to the
WBM.
Programming
You program in the WBM with the following actions:
● Keyboard entries
● Selection of options in drop-down lists
● Enabling check boxes
● Working with buttons ("Apply", "Add", "Load", "Search" etc.)
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Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC