Seskion PSI5 Simulyzer

Hardware and software


The PSI5-Simulyzer is an interface box, with which data can be read out quickly and easily on the one hand, and on the other hand, simulation data can be used to actively intervene in the process.

  • Simplified development of sensor technology
  • Visualization / analysis tools in the PSI5 software
  • Test and simulation function

Professional data simulation

Facts about the PSI5-Simulyzer

In addition to the standard version, Seskion also offers modified versions as well as advanced hardware and software solutions for special measurement requirements.

  • Standard Windows Gui application (optional): The protocol-specific Gui application offers a wide range of settings from the definition of signals, baud rates and error detection to trigger events. The visualization of the PSI5 bus communication facilitates troubleshooting and can also be easily saved. The PSI5 data is recorded with time stamps, whereby both import and export of data is possible.
  • API-ANSI-C (included in the box)
  • LabVIEW Lib (optional)
  • EMC Test (optional)
  • Sensor Programmer-Software (optional)
  • Sensor test software for up to 5 PSI5 boxes (optional)

Latest versions:


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InterfacesUSB 2.0 and connections for control unit and sensor
Power supplyvia USB or external plug Power supply unit
Compatible systemsWindows-7 +10,  Microsoft .NET Framework 2.0, Linux (only API, no GUI)
Recording optionsRecording of PSI5 voltages and currents with 3Ms/s
Data export.csv-file (Excel) and .tdms-file (NI)
PSI5 Baud ratesStandardized baud rates 125/189 kbit/s and individual baud rates between 80-250 kbit/s
ModesAll operating modes of the PSI5 specification

Simulyzer Box

1.1001   PSI5-Simulyzer USB Box Hardware V2.5, 1-channel, with analysis + sensor simulation and DLL

Optional hardware additions

1.2001   Optional CAN Interface for PSI5

1.2002   Optional 2nd PSI5 channel analysis + sensor simulation

1.2003   Optional 12V power supply adapter. Protection against high voltage fluctuations on 12V on-board networks

1.2004   Additional 11V output for PSI5 Simulyzer

Software licenses

1.3001   Windows Software Package PSI5-Simulyzer Analysis + Sensor Simulation (Simulyzer-Box or PC-ID bound license)

1.3002   Windows Application for testing PSI5-Sensors and communicating with your PLC via Modbus-TCP

1.3003   Windows Application PSI5-EMV SignalMonitoring

1.3004   Windows Console Application (command line interface) for programming OROYA, KP200 and KP300 sensors

1.3021   Software license PSI5-Tester

1.3022   Software license PSI5-Tester (continuous run) for one interface


1.4001   External box for sensor adaptation of up to 12 PSI-5 sensors via banana jacks

1.4002   RS485 adapter pluggable to Dig/Ana socket of Simulyzer for transmission of SPI signals via RS485

9.0001   Optional warranty extension of the Simulyzer box to 3 years

9.0002   Connection box for sensor adaptation of up to 2 PSI5, DSI3 or SENT interfaces via banana jacks. With ribbon cable for connection to the ‘Sensor / ECU IO’ socket of a Simulyzer box.

9.0003   Transport case “EXPLORER CASES” for PSI5-, DSI3-, SPI- or SENT- Simulyzer

9.0011   LabView-2016 Library, 32- or 64-bit. Simulyzer box or PC-ID bound license

9.0012   LabView-2016 Library, 32- or 64-bit. Company license

HiL-Simulation for Airbag ECU

To generate a complete HIL simulation for an airbag control unit, the internal acceleration sensor signals of the control unit (SPI) and the peripheral acceleration and pressure sensor signals (PSI5) must be connected. Also the ignition timing can be measured and analyzed by using the SQUIB box. Furthermore, a PC system connected to the simulators via a USB port/network is used for data processing.

Often up to 6 or more PSI5-Simulyzer are operated together with several SPI-Simulyzer. For coordination there is a superordinate configuration, which determines which Simulyzer is used, which signal traces are used by which Simulyzer and which detailed configurations are to be used with the bus parameters. By using the superordinate configuration, the operation of the API is very simple. A continuous control of the sensor signals can also be made.


PSI 5 is a cost-effective sensor interface which is frequently used in the automotive sector. The control unit communicates with one or more peripheral sensors. Sensor data is transmitted by current modulation on the supply lines.
PSI5 uses data frames with two start bits, 8 to 24 user data and one parity or optional three CRC bits. A data transmission period is initiated by a voltage synchronization signal from the ECU.


    The optoPSI5 by mk-messtechnik GmbH is an optical transmission system of PSI5-signals which can be used in EMC test environments to bring a PSI5 interface with fiber optics into the test camber.

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