ESX-3XM Product PhotoThe ESX-3XM is a highly adaptable, scalable, powerful controller with up to 65 I/O points. It can be considered the little brother of the ESX-3XL, with the same power and memory, but half the I/O and half the size.

The ESX-3XM provides up to 65 software-configurable inputs and outputs. Due to the modular design, 56 of the 65 inputs and outputs are customizable and can be configured for any application.  The base version, with 23 inputs and outputs, provides 4 CAN interfaces and 1 RS232 serial interface.  Additional CAN or RS232 interfaces, as well as other communication interfaces like USB or Ethernet can be added easily.

The processor system of the ESX-3XM, based on the powerful TriCore TC1796 from Infineon, is clocked at 150 MHz and is backed by 4 MB of RAM and 6 MB of Flash. A buzzer for audio alarms, and system and user LEDs for diagnostics help troubleshoot the system without the need for any special software tools.

The ESX-3XM, like its big brother, the ESX-3XL, is freely programmable in CoDeSys (version 3.x), in the ‘C’ Language, or with a Matlab/Simulink support package.  All of the inputs, outputs and communications port are fully accessible and configurable through extensive BIOS libraries.

The system is designed for safety-related applications according to SIL2/ISO 61508. Safety features are controlled by a separate, independent microcontroller.  Safety functions are available both in CoDeSys and in the C programming language.  A complete safety manual is available along with the extensive help files that fully document the ESX-3XL hardware and software.



Product Features

  • Up to 65 I/O
  • 81 Pin Sealed Automotive Connectors
  • IP 67 Environmental Rating
  • 2 Status LEDs and a buzzer


  • 15 Multifunction inputs
  • 12-bit resolution
  • Voltage, current, or frequency
  • Software-adjustable voltage range, 0-5, 10 or 40 V
  • Frequency measurement up to 20 kHz
  • 8 PWM or digital high-side outputs (2.5A) with voltage and current feedback
  • 1 independent adjustable regulator output for sensor supply
  • 4xCANbus 2.0B ports with hardware gateway functionality
  • RS-232 port


  • C with API Library (SIL2 safety features available)
  • CoDeSys V3 (SIL2 safety features available)
  • Matlab/Simulink

Expansion Modules

The 3XM has room for up to 3 expansion modules to customize the ESX-3XM controller to the specific needs of the application and also allow for future growth without re-design. With 14 pins each they can provide additional inputs or outputs, a motor bridge driver, communications interfaces, or a complete logging unit with 1GB of flash memory.

Both the ESX-3XL and the ESX-3XM have the following options for expansion boards:

  • Expansion Board EB02: 12x digital in, 1x digital out
  • Expansion Board EB03: RTC, 2x RS232, 1 MB Dataflash, 4x analog in (voltage)
  • Expansion Board EB03: 2x RS485 (half-duplex), RTC, 1 MB dataflash, 4x Uin
  • Expansion Board EB04: 12x digital out (2.5A)
  • Expansion Board EB04: 12x digital out (PVG)
  • Expansion Board EB05: 8xPWM out (4A), 4x digital in
  • Expansion Board EB05: 8x PWM out (4A) current feedback 150 mA, 4x digital in
  • Expansion Board EB06: (requires 3 expansion slots): 10x digital outputs (2A), 6x PWM outputs (2A), 1x analog output (0-20mA or 5-10V), 16x multi-function inputs, 2x current inputs, 2x resistance measurements (500..2500 Ω)
  • Expansion Board EB07: PowerPC, Linux OS, 1 GB data flash, CAN, USB, Ethernet, RTC
  • Expansion Board EB08: 8 digital out low side, 4 analog in
  • Expansion Board EB08: 8 PWM out low side, 4 analog in
  • Expansion Board EB09: 12 multi-function inputs and one Ureg
  • Expansion Board EB10: 4x CAN + 1x RS232
  • Expansion Board EB11: 6x analog output, 6x analog input

These expansion boards can be configured in any combination, thus creating an almost boundless number of controller options. Work with our sales engineers to create your own unique solution!

In addition, new expansion boards can be customized to your exact specifications, providing you a proprietary solution for your unique vehicle requirements. Click here or contact us to learn more about customization. We would love to discuss our customization options with you.

Product Information

ESX-3XM Controller Module

ESX Expansion Boards