Take advantage of the future of mobility

Siemens’ charging solutions are based on the SIMATIC ET 200SP Open Controller with an integrated Windows platform. The ET 200SP enables a direct backend connection using OCPP, for example.

This powerful controller combines the functions of a PC-based software controller with visualization, PC applications, and central I/Os in a single compact device. It can be easily integrated into higher-level systems thanks to open interfaces. 

The central pluggability of the SIMATIC ET 200SP modules puts the Open Controller in charge of open-loop control, closed-loop control, and the monitoring of all charging processes. The integrated USB interfaces allow a direct connection of RFID readers for user identification. The SIMATIC product line’s in-depth security concept consistently protects the controller from unauthorized access and outside manipulation.

The SIMATIC ET 200SP Open Controller is controlled by the preinstalled, preconfigured SIMATIC S7-1500 Software Controller, the PC-based version of the SIMATIC S7-1500. The SIMATIC S7-1500 runs independent of Windows to ensure high system availability.

The rugged SIMATIC HMI Panel suitable for outdoor use enables simple and convenient charging control and monitoring. Thanks to the 7- and 15-inch, daylight-readable widescreen displays with automatic or manual dimming, the durable, dazzle-free panels are legible at all times, whether in bright sunlight or darkness.

Optimized for outdoor applications, the extraordinarily UV-resistant panels can be reliably operated at a wide range of temperatures from -30° to +60° Celsius. The panel front meets the specifications of protection class IP66 and offers extreme protection from dust and water penetration. The highly rugged display is optimally protected from air humidity, condensation, and thermal stress.

SCALANCE X Industrial Ethernet switches ensure reliable industrial communication within charging infrastructures and the secure connection of the charging infrastructure to a higher-level network or the Internet for communication with the backend.

In addition to FastConnect connection technology for RJ45, M12, and fiber optic cables, these switches offer a variety of optical or electrical interfaces and support numerous IT standards.

With the SIMATIC RF1060R RFID reader, electronic customer identification and charging session authorization can be implemented extremely easily and flexibly. The identification process can utilize existing cards, such as employee IDs or credit cards, which improves user-friendliness and reduce costs.

RFID readers can be connected to the SIMATIC ET 200SP Open Controller through a USB interface or to a SIMATIC ET 200SP PtP module with a RS485/RS232 interface.

The SIMATIC ET 200SP Energy Meter records and continuously stores current and voltage values from the charging session. The values recorded can be used in the module to evaluate the active, reactive, and apparent power ratio.

The Energy Meter also makes it easy to detect a phase imbalance, which makes it possible to implement load management.

Combining the SINAMICS DCP with the PN/CAN Gateway makes it possible to implement DC charging solutions using the CAN-based CHAdeMO communication standard. The SIMATIC PN/CAN Gateway ensures the connection between PROFINET and CAN. In contrast to AC charging, the SINAMICS converter controls the power for DC charging in this case. Connected directly via PROFINET, it can be easily commissioned in the TIA Portal.

The SINAMICS DCP DC-DC converter is a highly efficient, bidirectional buck-and-boost converter offering scalable performance. It allows current to flow in both directions at variable voltage levels. Thanks to its high internal switching frequency, the SINAMICS DCP is light and compact, so it requires minimal space inside the charging terminal.

Developed on the basis of the SIMATIC ET 200SP, the TM ECC 2x PWM ST charge controller controls the IEC 61851-compliant conductive charging of eCars. When a charging infrastructure is being developed, it optimizes costs and saves space while also enabling the implementation of centralized and distributed concepts as well as standard-compliant AC charging infrastructure solutions with charge management. Two charging points can be implemented per module.

The parameterizable SIMATIC ET 200SP technology module enables the direct evaluation of charge statuses, and thanks to integrated DQ outputs, it ensures the time-critical opening of contactors according to IEC 61851. Because control of the plug lock is integrated into the charge controller, plug locks like those made by Phoenix Contact and Mennekes can be controlled directly.

A function block for the SIMATIC ET 200SP TM ECC module that facilitates commissioning is available in the TIA Portal. The option to specify a maximum charging current for the module via the program block makes load management easy to implement.

Contactors and fuses ensure the safe connection and disconnection of charging power. Regardless of whether charging is single-phase or three-phase, the integrated DQ output of the SIMATIC ET 200SP TM ECC technology module can be used to switch the contactors and thereby activate the charging current. If the configuration is expanded to include the SIMATIC ET 200SP Energy Meter module, the utilization of different phases can be detected in order to ensure even distribution by means of contactor interconnections controlled by ET 200SP DQ modules. The combination of cascaded contactors and the controllability of the charging current permits program-controlled, flexible charge management. In the event of a short circuit or overload, the compact SIRIUS circuit breakers offer reliable protection.