PA Coupler & Monitoring Kit


PA Coupler & Monitoring kit containing:

  • 1 x Head station 1B (101-20011B)
  • 1 x PA Coupler (101-201610)
  • 1 x 1 Channel repeater (101-201101)

PA Coupler & Monitoring kit containing:

Head station 1B:

Worldwide access to an COMBricks

Head station type 1B has monitoring capabilites for 1 network. The Head Station is the primary element of ComBricks and schedules the interaction between all modules and provides data storage and an Ethernet interface for the user.

Type 1B contains a ProfiTrace core for monitoring 1 PROFIBUS network and an advanced web server for permanent remote maintenance of the PROFIBUS installation over Ethernet (hardware is identical as a type 1A).
For monitoring repeater modules or slave modules are required to provide PROFIBUS telegrams on the backplane network.

Through the ProfiTrace 2 software package, OPC tags can be directly streamed from the Head Station type 1B. ProfiTrace 2 will run with full monitoring functionality and the user can benefit from its features.

The Head Station provides power to all modules through its redundant power supply.

Basic features:

  • Redundant power supply
  • Operating voltage: 11 - 26 VDC
  • Drives 32 modules (10 high-speed)
  • Repeating function on 1 network
  • Redundancy function on 1 network
  • Protocal: HTTP, FTP, SMTP, NELNET, SNMP, CommDTM.

Special features:

  • Live data streaming & OPC tags.
  • ProfiTrace OE monitoring on 1 network (Live list / Statistics / SCOPE / Bar graph)


PA Coupler:

The transparent PROFIBUS PA link/coupler enables seamless high speed integration to PROFIBUS PA. It powers the attached PA devices and fully emulates them as DP devices on the backplane. Adjusted busparameters are not required and therefore suitable for all DCS and PLC systems, even running on 12 Mbps.

  • 2 position selector switch for link or coupler mode
  • Basic link mode for bus speeds up to 12Mbps
  • Coupler mode for bus speeds up to 1.5Mbps (with bus settings)
  • Integration of ProfiTrace and oscilloscope.
  • User defined power supply 10...24 VDC for PA segment.
  • Max current 500 mA on PA segment.
  • Monitoring function on PA segment from 3rd party couplers/links if device is not powered.

COMBricks PROFIBUS PA link/coupler moduleDelivered including backplane socket. The ComBricks system enables Ethernet based Remote Maintenance and use of asset management tools.

The combined internal ProfiTrace and oscilloscope make this product extremely useful for remote maintenance over Ethernet. Jitter, noise, DC current, DC voltage, bar graph and oscilloscope, it is all there and easy to access. The free CommDTM allows access for asset management tools over Ethernet.

COMbricks is able to carry 9 PA links and a RS 485 or Fiber Optic module. It can also be a customized mix of PA modules with other communication modules. The PA link provides 500 mA current on a customizable bus voltage. The integrated PA termination is automatically activated when the module works as a power coupler. It is switched off in the monitoring mode.

It does not require configuration and operates the same way as regular COMbricks repeaters. In the web server the behavior on the PA side can be set, like retries (default 5) and the watchdog (default 3 seconds). This product can directly replace 3rd party Non-Ex PA couplers/links and can be used as a monitor behind existing 3rd party Non-Ex PA couplers.


1 Channel Repeater:

1 Channel standard RS 485 PROFIBUS repeater module for 12 Mbps with diagnostic LEDs and redundancy feature. Bus connection is utilized by screw terminals and additional DB9 connector.

The repeater channels are directly connected with the ProfiTrace OE core in the 1B/1C Head Station. Busmonitor data is directly available in the web server.

The advanced 12 Mbps core of the repeater module can be cascaded unlimitedly and has increased RS 485 strength. The data traffic is constantly monitored for glitches which are digitally filtered out. It has on-board switchable termination and able to drive 31 devices.

Features include:

  • Diagnostics LEDs
  • Busspeed up to 12 Mbps
  • 31 devices per channel
  • Screw terminals bus connection
  • DB9 connector for monitoring
  • Redundancy feature included
  • Bus termination integrated 

Delivered including backplane socket.


Head Station 1B:

Key features:

  • Drives 32 modules (10 high-speed)
  • Redundant power supply
  • uSD card holder for 32 GB (SD and SDHC)
  • USB connector for firmware updates



  • 10 / 100 Mbps link speed
  • Protocols: HTTP, FTP, SMTP, TELNET, SNMP, CommDTM


Web server with ProfiTrace OE:

  • Status of all modules
  • Live List
  • Statistics
  • Message recording
  • Email and log on PROFIBUS events
  • System log


Power supply:

  • Operating voltage: 11 - 26 VDC
  • Backplane current: 2.5 A


Other features:

  • Operating temperature: 0 - 60 °C
  • Dimensions: 140 x 110 x 25 mm
  • Weight: 150 g


PA Coupler module

COMbricks PROFIBUS PA link/coupler module featuresPROFIBUS DP (on the backplane):

  • 9.6-12 Mbps
  • Fully transparent
  • No address and adjusted busparameters required


  • 10-27 VDC 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
  • 1900 m cable length (depends on trunk current)
  • PA termination automatic (ON in coupler mode)

PROFIBUS PA connectors:

  • 2 Removable PA screw terminals (1-on-1)
  • 1 Removable power connector (11 .. 28 VDC)
  • < 2.5 mm2 wire diameter (stranded or solid core)

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
  • Retry and Watchdog settings


  • 4 Networks selectable with switches
  • Coupler mode: 9 modules (positioned in the first 10 slots)
  • Monitoring mode: 4 modules (positioned in the first 10 slots)
  • 350 mA current consumption

Other features:

  • Diagnostic LEDs
  • Required Head Station firmware: V1.279 and later
  • Operating temperature: 0..60 °C
  • Dimensions: 140 x 110 x 25 mm
  • Weight: 133 g


1 Channel Repeater:

Electrical and Mechanical:

  • 1 Bus channels
  • 31 devices/bus-loads per channel
  • 1200 m cable length (depends on baudrate)
  • No limit in cascading
  • Termination switches for each channel
  • Removable screw terminals and 1 DB9 connector


  • Transparent for all PROFIBUS protocols
  • 9.6 kbps - 12 Mbps (auto detection)
  • 2 bits delay time (12 bits in redundant mode)
  • No address required
  • Bus redundancy (selectable)


  • 4 Networks selectable with switches
  • 10 Modules (positioned in the first 10 slots)
  • 300 mA current consumption

Other features:

  • LEDs (Error, Rx data, Termination ON)
  • Operating temperature: 0..60 °C
  • Dimensions: 140 x 110 x 25 mm
  • Weight: 150 g