ComBricks PROFIBUS DP/PA Coupler


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Manufacturer: Grid Connect Inc.

Delivery: Ships within 7-14 business days
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Product Information

Product Description

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The ComBricks PROFIBUS DP/PA coupler is the latest in innovations for the ComBricks family. This 21st century coupler leapfrogs the competition in features and footprint and enables seamless integration to PROFIBUS PA. The DP/PA coupler powers the attached PA devices and forwards telegrams coming from the ComBricks backplane. With the optional ProfiTrace OE and the oscilloscope, this doubles as an extremely powerful tool for remote maintenance over Ethernet. The coupler also enables the use of asset management tools with its free CommDTM software!

The DP/PA coupler module comes in two configurations:

  1. 1. Combined with a Type 1 Head station and a PROFIBUS repeater card as a PROFIBUS DP/PA coupler
  2. 2. Combined with a Type 3 Head station and a PROFIBUS repeater card as a PROFIBUS DP/PA coupler with monitoring

The PA segment coupler does not require configuration and operates the same way as regular ComBricks repeaters for PROFIBUS DP. The coupler has several advantages when compared to other existing couplers on the market:

  • Transparent on 9.6 kbps up to 1.5 Mbps.
  • Customizable PA voltage.
  • Can directly replace 3rd party Non-Ex PA couplers.
  • Very small footprint.

The DP/PA coupler can be expanded by adding additional PA and DP modules. The ComBricks backplane can any combination of 10 PA or DP modules. Just snap in the additional modules as needed!

The integrated PA termination is automatically activated.

CommDTM for ComBricks

The free ComBricks CommDTM provides FDT 1.2 based asset management tools such as FieldCare and PACTware a powerful Ethernet pass through to access PROFIBUS DP and PA devices that are connected behind ComBricks repeater modules.

The internal DP-V1 class 2 masters in the ComBricks Head Station are able to drive 2 out of 4 networks divided over the repeater modules. When a network connection is closed, the user can enter another network. The 2 active networks are managed by 1 or 2 PC Ethernet connections.

The CommDTM provides the same auto baudrate detection facilities as ProfiCaptain. It detects all busparameters before it goes online.

All ComBricks functions, like the integrated ProfiTrace bus monitor and oscilloscope work simultaneously with the CommDTM.

Find out more about the ComBricks product family!

Order Summary




Manufacturer Part # (MPN)



  • Comes complete with a Type 1A Headstation (no monitoring) or a Type 1C Headstation (with monitoring), one 1-channel PROFIBUS DP module, and one 1-channel PROFIBUS PA module.
  • Integrated oscilloscope for examining messages on the PA cable (when purchased with monitoring).
  • Transparent on 9.6 kbps up to 1.5 Mbps.
  • Customizable PA voltage.
  • Can be combined to build up to 4 DP/PA couplers for 4 networks on a single system.
  • Can be used as a DP/PA Coupler for a single network with any combination of 10 Profibus PA and DP segments
  • Gateway for use of the free CommDTM software for asset management using FDT tools like PACTware or FieldCare
  • DIN-rail mount
  • 1 Year Warranty

Documents and Drivers


ComBricks Head Station Type 1A Datasheet

ComBricks 1 Channel Repeater Module Datasheet

ComBricks PROFIBUS PA Coupler Module Datasheet

ComBricks User Manual


How To Build A Better PROFIBUS Network Using ComBricks (1 hour)


ComBricks DWG Drawing



Support for up to 10 High Speed Modules, Up to 32 Modules Total


140 x 110 x 25 mm

Indicators LED

Diagnostic LEDs


PROFIBUS PA cable specifications:

  • Max. 1900 m cable length (depends on trunk current)
  • < 2.5 mm2 wire diameter (stranded or solid core)
  • Automatic PA termination (ON in coupler mode)

Connector specifications:

  • 2 Removable PA screw terminals (1-on-1)
  • PA-, PA+
  • SH (direct grounding)
  • I (indirect grounding)

Removable power connector:

  • -, + (11 .. 28 V)
  • SH (direct grounding)

PROFIBUS DP specifications:

  • No address required
  • Tslot has to be adjusted

Internal Web Server

  • Oscilloscope images of connected devices
  • Last, Min, Max bus signals
  • Bar graph of connected devices
  • DC current of the trunk and signal jitter
  • Email on telegram errors and low bus signals




PROFIBUS: 4 (set by dip-switches or webserver)


PROFIBUS PA power specifications:

  • 10 - 27 V customizable PA trunk voltage (Non-Ex)
  • 500 mA trunk current
  • 10 mA current consumption (in all modes)
  • 32 devices (depends on current consumption)
  • 31.25 kbps PA signal

Power Consumption

+/- 350mA

Power Supply

Provided through the backplane

Product Weight

133 g


DP-V0, DP- V1, DP-V2, FDL, MPI, FMS, PROFIsafe, PROFIdrive and any other FDL based protocol

Temperature Range

0°C to +60°C (32°F to +140°F)

Transmission Speed

9.6 kbps - 1.5 Mbps (auto detection and including 45.45 kbps)

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