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N-options firmware

This software applies to the following DEIF products:

You’re about to download 2.41.0

The main changes implemented since the last version are as follows:

        - Dropbear (SSH server) updated from version 47 to version 74
        - Ethernet/IP object 6E + 6F updated
- SSH key generation changed to single thread to avoid requirement for double boot after enabling SSH server


Ver. Date Description



        - Dropbear (SSH server) updated from version 47 to version 74
        - Ethernet/IP object 6E + 6F updated
- SSH key generation changed to single thread to avoid requirement for double boot after enabling SSH server





  • Some modbus registers were updated slowly and some not at all. Now all registers are updated as fast as they used to.



New features:

  • Added support for adjustable log sizes (DM4-Marine Only)
  • Added new data logger which can log from configurable Modbus area to flash (AGC 4 only)
  • Added new LVRT logger which can save LVRT data to flash (AGC 4 only)
  • Added support for NTP time synchronization including time zones and daylight saving
  • Added support for SSL/StartTLS protocols for SMS/Email service (now you can use services like gmail and hotmail for email transmission)


  • Improved stability on all N-option features
  • Fixed several problems stopping the Modbus server (you would have to restart the unit to recover)
  • Improved startup process (a power cycle during startup could overwrite flash and  stop Modbus TCP/IP, Ethernet IP, SMS/mails service)
  • Improved stability when downloading new application software to controller via TCP
  • Ethernet/IP is now disabled by default. (you can enable it via N-Option tool)



New features:

  • Support of webarm hardware with new flash’s mounted. No changes to user interface.
  • New USW released v3.39.0 to support firmware download of webarm hardware with new flash.



New features:

  • Ip address, gateway address and netmask can be set either via the H8 modbus interface or by the Display Unit.
  • Flashing of the (H8) application code is possible over tcp/ip


  • Issue regarding incorrect alarm and event info is fixed.
  • Issue regarding missing reboot of webarm module when downloaded firmware to H8 is fixed.



  • Ethernet/IP has been implemented.



  • New renamed image which enable download into target.




  • Modbus server accept modbus id's between 0-255



New features:

  • Support for AGC-3.3x Application software



  • Support for AGC-3.3x.x Application software

On this page, you can download software updates for your product(s) and help yourself to various utility tools and add-ons that will assist you in setting up, detecting faults and configuring your product(s).

Please note that not all of our products can be updated by the user. Nor do all of our products come with a utility tool. Consequently, the list on this page cannot be considered an overview of our product program.

DEIF will register your download along with the email address used for the purpose of sending out information on future updates, if requested.

DEIF cannot be made responsible for any consequences of failed product updates or use of utility tools. Nor can DEIF A/S be made responsible for consequences of changes in behavior of products due to a software upgrade. It is always the responsibility of the user to ensure correct set-up and configuration before commissioning. Please study the version log of the software before updating the product.

License agreement for software downloaded from

Downloaded software remains the property of DEIF. The software may not be distributed for commercial purposes, changed or reused in full or in part or sold to any third parties.

The latest versions for full functionality

As always, we recommend that you install our offered improvements to fully utilize your DEIF product.

All improved software can be downloaded at your convenience at under “Software”.

Should you have any questions or experience problems finding the relevant software for your product, please feel free to call DEIF A/S at +45 9614 9614 or your relevant local DEIF office. Alternatively, we are always ready to assist you, if you send an email to

Press release, June 2015

Information on product improvement specifically related to “older” DEIF A/S ML-2 products.