Dutch Master Roasters DMR models - Roasting Intelligence (RI) Setup (beta)

This manual covers the connection of a Dutch Master Roasters DMR roaster to Cropster's Roasting Intelligence.


If you haven't been invited to participate in the beta program for this integration, but you are interested in participating and testing the feature, please sign up here.

Beta means that the features are being tested with a select group of users to help us identify minor flaws under everyday conditions that we cannot reproduce internally. Therefore, it will be necessary that you share feedback with us and let us know whenever you come across some unexpected behavior.



    • Ethernet cable
    • In order to use the Dutch Master Roasters integration, the roaster's software requires the following minimum software versions:
      • App version 5.x.x
      • Backend version 5.x.x
      • PLC version >= 2.35.

    The software versions are shown in the Dutch Master Roasters app, in the bottom left-hand corner of the screen (can be seen in the first screenshot located below).


    If your PLC version is less than 2.35, a manual update of the PLC software needs to be done by Dutch Master Roasters. For more information regarding the update, please contact info@dutchmasterroasters.com

    Additional Requirements

    • In order to be able to control the roaster using the Roasting Intelligence control sliders:
      • The setting "Remote control" needs to be enabled in your Dutch Master Roasters App.
    • The button "Roaster" needs to be turned on (lit up in green):
    • In the Roasting Intelligence you can switch between the Gas Control slider and the Set Temperature Control slider using the "Auto" toggle:
      Screenshot 2023-12-28 at 10.01.08
      • The Gas Control slider can only be used during the roast, and not in the preheating phase.
      • The Set Temperature Control slider can be used in the preheating phase, and during the roast.
      • Control of Drum Pressure and Drum Speed is only possible during the roast.

    Please note: The Gas Control slider in the RI does not correspond to the "Maximum burner rate" on the Dutch Master Roaster app. Currently, "Maximum burner rate" cannot be controlled with the RI.

    When the Gas Control slider is shown (Auto toggle in RI is disabled), the roaster's PID is disabled and thus, the Air Temperature Set Point has no effect, allowing you to control Gas manually with the Gas slider.

    When the "Set Temperature" slider is shown (Auto toggle in RI is enabled), the roaster's PID is enabled and thus, the Air Temperature Set Point can be controlled from within the RI.

    Supported measurements

    • Bean temperature
    • Exhaust temperature
    • Other temperature*
    • Gas (%)
    • Drum pressure (Pa)
    • Drum speed (RPM)
    • Fan speed (%)
    • Gas control (%)
    • Drum Pressure control (Pa)
    • Drum speed control (RPM)
    • Set temperature control

    * = Optional Bean temperature IR sensor. 

    Setting up a connection

    Via the computer 

    1. Connect the computer to the Ethernet port at the side of the DMR roaster with an Ethernet cable.
    2. Configure the computer’s network device to obtain the IP address dynamically (DHCP).

    Proceed with the Roasting Intelligence (RI) Setup.

      Roasting Intelligence (RI) Setup

      Installing the Roasting Intelligence (RI) software

      1. Download the custom version of Roasting Intelligence depending on your computer's Operating System here.
      2. The Cropster installer leads you through all the installation steps.
      3. Open the RI by double-clicking the Cropster icon on the desktop
      4. Enter your username and password.
        They are the email address and password you were given to access your Cropster account on c-sar.cropster.com
      5. Check the Remember credentials box if you want to be able to run the RI offline.
      6. Click the Login button. 

      Establishing a connection to the machine

      1. Go to Account > Preferences > Machine tab.
      2. Select the Roast machine you would like to connect from the drop-down menu (e.g. Dutch Master Roasters).
      3. Select the connector "Dutch Master Roaster PLC" for all measurements.Screenshot 2023-12-28 at 09.40.57
      4. Click on the gear () icon to open the PLC-Settings. 
        • The default IP address of your roaster should show:
          • Please note: The IP address of the roaster is fixed and cannot be configured.
      5. Click Save to confirm the changes. The RI requires a restart to apply the settings.

      If the setup was successful you will be able to see temperature values on the right-hand side of the RI screen, after the restart.


      If the RI indicates No source connected and/or you cannot see any measurements, please check the following: 

      For further assistance, please create a support ticket by clicking the Support button in the left lower corner of the app. A Cropster support rep will get in touch with you.

      Congratulations! You have successfully set up the Cropster Roasting Intelligence!

      Check out our Getting started video and enjoy tracking your first roasts! 

      More manuals and videos can be found on help.cropster.com