FOUNDATION Fieldbus Diagnostics Module
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Fieldbus diagnostics moduleFOUNDATION Fieldbus network diagnostics has never been so open and easy. The COMbricks Diagnostic Module is able to permanently check the condition of the H1 physical layer. By means of a web server the signal quality of the connected devices can be inspected and emails inform the user about critical events. Notifications and remote access assure an optimal network uptime and reduced maintenance costs.

The COMbricks FOUNDATION Fieldbus Diagnostics Module is not an active device and therefor does not require an address. It passively measures the network condition and can be wired parallel or series to/in an existing H1 segment.

FF modules can be combined with PROFIBUS DP and PA diagnostics modules to offer a complete installation overview to the user.

Fieldbus diagnostics module application

Product features

Web server

  • Oscilloscope images of all connected devices
  • Bar graph of all connected devices
  • Last, Min, Max values of the bus signals
  • DC voltage, DC current and signal jitter
  • Email on low bus signals


  • 33 VDC measurable bus voltage
  • 500 mA measurable bus current
  • 10 mA current consumption
  • Termination is NOT integrated


  • 2 Removable OUT connectors (1-on-1)
  • 1 Removable IN connector (for current measurement)
  • < 2.5 mm² wire diameter (stranded or solid core)


  • 10 FF modules (positioned in the first 10 slots)
  • 350 mA current consumption per module


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

Fieldbus diagnostics module application 2

PRODUCT Price Order code Remarks
 Fieldbus Diag. Module  Contact us 101-240610 Includes: Backplane unit, Screw terminal connectors and Grounding clips
 Head Station 1A  Contact us 101-20011A Includes: Backplane unit and a 2 Gb SD card
FOUNDATION Fieldbus Standard Monitoring Kit  Contact us 101-200QAO Includes: Head Station 1A, Fieldbus Diagnostics Module and a Backplane unit


At least a Head Station 1A is required to use the full functionality of the Fieldbus modules.

It covers 128 network addresses for triggered oscilloscope images. During the next firmware issues this will be extended to address 240.

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