• Safety level SIL 2 / PL d / ASIL B
  • Efficient multicore processor (3 x 300 MHz)
  • integrated Ethernet switch and 4 x CAN 
  • Comprehensive software package with IDE, compilers and libraries for C or logi.CAD
  • Communication via CAN, Ethernet- and serial interfaces

The ESX.4cm-a is a powerful and freely programmable mobile electronic control unit. Thanks to its compact size, extensive functionality, and flexible design the ESX.4cm-a can be used for the most demanding requirements in mobile machines. Its robust die-cast aluminum housing makes almost any installation location feasible.

Compact and Communicative

The ESX.4cm-a features a processor with three cores (Infineon AurixTM), four CAN bus interfaces and a managed Ethernet switch. In terms of connectivity, no wish is left unfulfilled, with two 100Mbit/s Ethernet (100Base-Tx) and two Single Pair Ethernet (100Base-t1) ports. The Ethernet switch enables the exchange of large amounts of data without affecting the control unit’s processor performance.

The high-performance ESX.4cm-a provides a total of 34 configurable analog and digital multifunction inputs. They read and process a wide variety of signal types, including SENT. The controller provides fixed and programmable supply voltages from 5 to 12 V for the connected sensors. The 29 outputs, both low-side and high-side, provide up to 4A per channel, depending on the configuration. Connected components and actuators can be powered with a high degree of flexibility, and also supervised.  A second shutdown path safely and reliably disconnects the outputs of the ESX.4cl when necessary. For safety-oriented applications, this emergency shutdown path is mandatory.  User programmable LEDs indicate the status of the control unit. With a protection class of up to IP6k9k, the control unit is suitable for the most adverse conditions.

The way to the application

Different possibilities are available for application software development on the ESX.4cm-a: STW’s The freely available and open source development and management suite openSYDE offers the possibility to define and test functionality in "C" and Structured Text (ST) according to IEC61131 using logi.CAD3 and Matlab. For functionally safe applications, the control unit and software are certified according to SIL 2 / PL d / ASIL B*.

Systems in the field can be configured, managed and updated using openSYDE. Via the numerous pre-installed widgets in openSYDE, data pools available via CAN or Ethernet can be displayed graphically and used in HMIs or cloud solutions. Numerous convenient functions are already integrated, such as current controllers and ramp functions for outputs, or frequency averaging for inputs. Additional libraries include CANopen, J1939 or ISOBUS* further simplify system integration. An 8 MB flash memory, 2 MB RAM and a 32 kB EEPROM are available for customer applications. An external 128 Mbit flash memory or a 512 kbit FRAM can be included for storage of large tables or cyclically recorded data.

*scheduled features