Technical data

The HESCH multifunction controller is designed for universal installation in 1/4 DIN format. Via the 3.5″ touch screen and the four freely programmable keys, the usage is very user-friendly. The basic device offers slots for two I/O cards and a communication card, which can be selected individually depending on the application.

I/O cards

I/O card type 1:

  • two galvanically separated analogue universal inputs (for measuring temperatures, voltages, currents, resistances, norm signals, etc.)
  • two galvanically separated standard signal inputs (current/voltage)
  • two galvanically separated analogue outputs (current/voltage)
  • six digital inputs/outputs (user-programmable as input or output)

Further I/O cards on request.

Communication cards:

The HESCH multifunction controller offers the following communication cards:

  • Profinet
  • Profibus
  • Modbus RTU Master
  • Modbus RTU Slave
  • Modbus TCP Client
  • Modbus TCP Server
  • CAN Bus
  • HPR Bus Master

Further communication profiles on request.

Relay outputs:

The HESCH multifunction controller offers four potential-free relay outputs with change-over contacts.

Further technical data:

Supply voltage

100…240 VAC / 24 VDC

Sensor supply

18 VDC / 45 mA

Power consumption

Max. 350 mA (24 VDC)


Resistive touch screen; 3,5″

Resolution: 320 × 240 pixel QVGA

USB interfaces

Back: 1 × USB 2.0 Host (type A)

Front: 1 × Mini USB 2.0 device (type B), galvanically separated


2 freely programmable LEDs as state indicators


4 freely programmable keys


Cortex A8, 600 MHz

Boot time

approx. 17 seconds

Real time clock

buffered against mains failure


eMMC 4 GByte

DDR2 65 MByte

Flash 128 MByte

MRAM 128 KByte


Control panel built-in casing

Protection class IP 65 at the front/IP 20 remaining areas

Dimensions: 98 × 98 × 115 mm (without plug)

Climatic ambient conditions

Storage/Transport: -20° C … +70° C

Operation: 0° C … +55° C

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