Compact controller with PROFIBUS-DP interface for DIN rail mounting

SEC3PB is an embedded controller designed for use in industrial applications. Compared to the basic system SEC3 it comes with an additional PROFIBUS-DP interface. It has no rotating parts. A fan is not required due to the low power requirement.

SEC3PB has two serial RS232/RS422/RS485 interfaces and two Ethernet adapters. Thanks to a redundant power supply different input voltages can be used.

SEC3PB is used in combination with the product ip4Cloud/SEC3PB. The system is supplied with the newest version of our real-time ipLinux operating system.

The device is equipped with a status relay, which can be freely configured by the software. In the case of power failures or non-fulfillment of a user-defined condition a changeover switch switches into the idle state "FAIL".

Various diagnostic functions are available via built-in LEDs. A power indicator, transmit and receive indicator for the serial interfaces as well as an indicator for the network controller provide information about the current operating status.

Performance Overview

Graphical comparison of IPCOMM gateways with regard to the maximum number of information changes/s at 100% throughput and the maximum number of node variables that can be managed, processed and transmitted.

Gateway Performance Charts

Technical Details

  • Processor

    ARM Cortex-A8 1 GHz

  • Mass Storage

    512 MB SLC NAND Flash

  • Memory

    256 MB DDR3L

  • Network Interface

    2x RJ45 10/100BASE-T

  • Serial interfaces

    2x RJ45 RS232 / RS422 / RS485
    Baud Rate: 300 – 115200 Baud

  • PROFIBUS interface

    1x PROFIBUS interface DB9 female
    (DPV0, RS485 9600 to 12M Baud, passive)

  • USB interface

    1 x USB 2.0 up to 480 Mbps

  • ESD

    All interfaces are ESD protected
    (ESD, surge and burst see EMC)

  • Diagnostics (Status LEDs)

    PWR: Power LED
    USR: Free configurable LED by software
    CPU: LED to show different software conditions
    COM1/COM2: Send and receive LED for serial interfaces
    ETH0/ETH1: Link and activity LED for Ethernet interfaces
    PROFIBUS RX: Receive LED
    PROFIBUS PWR: Power LED for PROFIBUS interface
    PROFIBUS OP: Operation LED

  • Additional functions

    Battery bufferd real time clock (RTC)
    State relay "FAIL"
    Hardware watchdog
    Temperature monitoring
    Power supply monitoring

  • Power supply

    12 / 24 / 48 V DC (9 – 60 V DC)

  • Power consumption

    Max. 10 watt (typ. 4 W without USB)

  • Line cross-section

    0.13 – 3.31 mm² (AWG 26...12, solid or stranded wire)

  • Feature

    Redundant power supply with fault contact

  • Dimensions W/H/D

    65mm/106mm/122 mm

  • Mounting

    35 mm DIN-Rail

  • International Protection


  • Rotating parts


  • Weight

    approx. 0.6 kg

  • Operating- / storage temperature

    -20° C to 60° C / -40° C to 85° C

  • Rel. humidity

    5 % to 95 % non-condensing

  • Approval

    CE (Industrial)

  • Standards

    EN 55032: 2015
    EN 61000-6-2: 2005

  • Conformity


  • Electromagnetic Compatibility (EMC) – Emission Requirements:

    EN 55016-2-1:2014
    Conducted emission on power supply lines in the frequency range 150 kHz - 30 MHz
    EN 55016-2-1:2014
    Conducted emission on telecommunication lines in the frequency range 150 kHz - 30 MHz
    EN 55016-2-3:2010 + A1:2010 + AC:2013 + A2:2014
    Radiated emission in the frequency range 30 MHz - 1 GHz
    EN 55016-2-3:2010 + A1:2010 + AC:2013 + A2:2014
    Radiated emission in the frequency range 1 GHz – 6 GHz

  • Electromagnetic Compatibility (EMC) – Immunity Requirements

    EN 61000-4-2: 2009
    Electrostatic discharge (ESD)
    - Contact discharge ± 6 kV
    - Air discharge ± 8 kV
    EN 61000-4-3: 2006 + A1:2008 + A2:2010
    Immunity to RF electromagnetic fields in the frequency range 80 – 2700 MHz, Test level 10 V/m
    EN 61000-4-4: 2012
    Immunity to fast transients (Burst)
    - DC power port ± 4 kV
    - Signal lines ± 2 kV
    EN 61000-4-5: 2014
    Immunity to surges on power supply lines (Surge)
    - DC power port: line <-> ground ± 2 kV
    - DC power port: line <-> line ± 2 kV
    EN 61000-4-5: 2014
    Immunity to surges on shielded signal lines (Surge)
    - Shielded lines ± 2 kV
    EN 61000-4-6: 2014
    Immunity to conducted interference induced by radio-frequency fields in the frequency range 150 kHz – 80 MHz, Test level 10 V


EU declaration of conformity