Compact, energy self-sufficient RTUs

Image of the SIMATIC RTU3030C Remote Terminal Unit

The SIMATIC RTU3000C series – remote yet reliable

The compact RTUs from the SIMATIC RTU3000C series are energy self-sufficient, low-power Remote Terminal Units (RTUs). They enable the reliable monitoring of the most remote measuring points.

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For the most remote regions and harshest conditions

Thanks to their optimized energy consumption, compact SIMATIC RTUs don’t need an external power source: They supply themselves from either a battery or an accumulator with a solar panel. This makes them ideal for use in remote locations with harsh climatic conditions.

Accessories for SIMATIC RTU3000C

Ensure optimal performance over the long term

You can expand the functionality of our RTUs with accessories for the SIMATIC RTU3000C series.

SIMATIC RTU3000C promotional package

Try out the compact Remote Terminal Unit SIMATIC RTU3031C, at a discounted price.

Compact Remote Terminal Units

They operate wherever you need them

Our compact RTUs from the SIMATIC RTU3000C family are ideal for locations with no connection to a public power grid. Thanks to low-power operation, they don’t need an external power source.

Compact, energy self-sufficient, rugged

The RTUs have a flexible power supply concept. They can be operated with up to 2 x 3 redundant battery modules or connected to an accumulator with a solar panel or a 12–24-V  DC power source. They operate reliably even under harsh conditions ranging from -40 to +70° Celsius. A protective external enclosure also allows them to be used in areas prone to flooding (IP68).


Telecontrol protocols supported:


  • TeleControl Basic
  • DNP3
  • IEC 60870-5-104

Typical applications include data logging, leak detection, monitoring pumping stations and water reservoirs, monitoring liquid levels in tanks and silos, monitoring agricultural irrigation systems, flood protection, and buoy position detection.

Communication connection

Any IP-based network via external router, such as SCALANCE M

2G, 3G via integrated modem or via external router
2G, 3G via integrated modem or via external router; GPS reception
Inputs / Outputs

- 8 digital inputs (DI), of which 2 frequency counters

- 4 digital outputs (DO)

- 4 analog inputs (AI)

- 8 more DI for HART Multidrop or Modbus RTU with extension board

- 8 digital inputs (DI), of which 2 frequency counters

- 8 digital outputs (DO)

- 4 analog inputs (AI)

- 8 more DI for HART Multidrop or Modbus RTU with extension board
Secured e-mail, tunnel of TeleControl Server Basic, OpenVPN, VPN connection with SINEMA Remote Connect via auto configuration
Power supply

Freely combineable

- 12- 24 V DC

- 2 x 3 redundant battery modules

- Accumulator with solar panel

Temperature range
-40° to +70°C
Degree of protection
IP20 (IP68 with separate enclosure)
Telecontrol protocols
TeleControl Basic, SINAUT ST7, DNP3, IEC 60870-5-104
Local and remote via web based management

Reliable even in the most remote locations

Our RTUs record measured values from connected sensors and transmit them via wireless network to the control center – secured by an OpenVPN tunnel or secure e-mail. The communication parameters are freely adjustable. If the measured values drop below or exceed a defined value, the RTU reports it immediately via text message or e-mail alert. This enables service personnel to quickly respond to extraordinary events. The devices offer integrated inputs and outputs. Eight additional sensors can be connected with an extension board via HART Multidrop / Modbus RTU.


The RTUs can perform data preprocessing to reduce data volume and simplify data evaluation in the control center. A variety of program module types are available for this purpose (like silo level-monitoring and calculating overflow volumes in rain overflow basins). Adjustments to the configuration and firmware updates can be performed from the control center using a standard browser. 

Battery modules

Battery enclosure and battery expansion enclosure for holding two mono cells; suitable for the SIMATIC RTU3000C family


> Order from the Industry Mall

IP68 enclosure

Enclosure in degree of protection IP68; suitable for SIMATIC RTU3000C; permits the RTU3000C family to be used in areas prone to flooding


> Order from the Industry Mall

More accessories

Power supplies, antennas, SIM cards, and much more


> Order from the Industry Mall

The benefits at a glance

SIMATIC RTU3000C – energy-self-sufficient RTUs for harsh environments

The RTUs in the SIMATIC RTU3000C series feature reliable low-power operation even in harsh environments.

The fastest way to the experts

Proposed solutions for your queries and direct access to our experts in Technical Support

Service offers

To remain competitive over the long term, companies in industry must ensure – and ideally increase – the availability and productivity of  machines and plants. As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise.

Well trained for excellent handling

Receive standardized or individual expertise directly from the manufacturer – with training centers in more than 60 countries


How can we help you?

If you have any questions, comments, or feedback, please feel free to contact us. We‘re ready to help!