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Resol Dataloggers and WWW.VBUS.NET












Resol has two models of dataloggers: DL2 and DL3. WWW.VBUS.NET website is published with Resol DL3 coming. Resol server-based dataloggers and are fulfilling the niche of monitoring, controlling, and troubleshooting system remotely without changing settings in your routers.

What are the major priorities of Resol dataloggers and

  • Easily wiring up, setting up and starting up: resol Vbus cable connection, signing up an account on with your datalogger’s unique code, and no additional knowledge needed.  
  • User friendly interfaces: Live data interface, Schematics interface, Graphs interface
  • Being optional to open data to the public.  Example:  and
  • Downloading data from the web page or directly transferring data from dataloggers.
  • Picking up data from any time frames.
  • Tracking all sensors' values, relays activities and energy consumption more than one places and more than one controllers.
  • Tracked and recorded values provide first-hand evidence to future maintenance, trouble shooting and system analysis.
  • is accessible through any devices being able to aceess to the Internet such as PCs, iphones, Android phones and Blackberries (No additional application software needed)
  • All services at are Free of Charge; our technical support are Free of Charge.

We are glad to provide 30min free training to help you start with the “NEW TOY”

We welcome you to try our DL3 and before you decide to work with them. 

Please visit our account.

Login  at by user name: SOLARNETIX_DL3 and password: M1L4C3

icon VBUS.NET Flyer     icon VBUS.NET User Manual      icon Controller, Datalogger and VBUS.NET Connection 

**Solarnetix Inc provides extra assistant documents for helping customers set up dataloggers**

Resol DeltaSol MX

   CLCUS Certified

The RESOL Delta Sol® MX is a system controller of the latest generation, offers almost endless possibilities in planning and controlling solar thermal systems. It is equipped with 14 relay outputs and 4 PWM outputs for the speed control of ECM pumps. Additionally, the controller has three impulse inputs as well as a range of different sensor inputs. up to 5 EM Extension modules can be connected via the RESOL vBus®. The integrated SD memory card slot enables an easy datalogging to an SD memory card and a quick, effortless transfer of logged data to a PC.

 The DeltaSol® MX controller is now c LCus certified and meets the demands of the UL 60730-1:2009 and CSA B60730.1:2002 standards.

iconRESOL DeltaSol MX-Installation&User Manual              icon  Resol DeltaSol MX Function Layout

  Resol DeltaSol MX Programming Example:

icon MX-31_HC-11201 (828.35 kB)   & Live Data View from

Click here for more diagrams, and here for Resol DeltaSol MX Video.

Zilmet Expansion Tanks


Solar expansion tanks control thermal expansion of the heat transfer fluid in closed loop solar systems. Differenct sizes of expansion tanks are offerred and we will help you to choose right size.

icon Zilmet Expansion Tank Literature

Expansion tank size calculator:

icon Sizing Solar Expansion Tanks

Grundfos Direct Sensors™

Grundfos VFS, RPS, VFD and RPD sensors are all two-in-one sensors. Grundfos VFS and VFD measure temperature and flow rate, and Grundfos RPS and RPD measure temperature and pressure. They can be used for measuring flow rate of different media such as glycol and water.VFS is analog vortex flow sensor and RPS is analog relative pressure sensor. VFD is digital vortex flow sensor and RPD is digitial relative pressure sensor.


Resol DeltaSol MX can directly work with Grundfos Sensor VFS, RPS, VFD, and RPD.

Resol DeltaSol BX PLUS can directly woth with Grundfos Sensor VFD and RPD

Resol DeltaSol BX can directly work with VFS and RPS with flow rate 1-12l/min, 2-40l/min and pressure 0-10 bar.

Besides, Resol has WMZ G1 energy meter which is designed to work with Grundfos sensor VFS and RPS. If you already have a Resol controller which cannot directly connect with Grundfos sensor, WMZ G1 is able to work with your current controller, provide energy calculation and communicate with Resol controllers and dataloggers by Resol Vbus Protocol.

Currently, we have following Grundfos Sensors In stock:

icon Resol Grundfos VFS 1-12l/min     icon Resol Grundfos VFS 2-40l/min    icon Resol Grundfos VFD 1-12l/min

icon Resol Grundfos VFD 2-40l/min     icon Resol Grundfos RPS and RPD 0-10 Bar    

icon Grundfos VFS 1-12 l/min              icon Grundfos VFS 2-40 l/min             icon Grundfos VFS 5-100 l/min

icon Grundfos VFS 10-200 l/min          icon Grundfos VFS 20-400 l/min         icon Grundfos RPS 0-10 bar

Resol RPT parameterisation tool

Remote parameterisation of RESOL controllers

pdfResol RPT user manual



RPT parameterisation tool
The RPT parameterisation tool is a software that enables the remote parameterisation of the following RESOL controllers:

DeltaSol® BS/2 V2     DeltaSol® BS/4 V2     DeltaSol® BS Plus V2     

DeltaSol® BX              DeltaSol® MX (1.09)

The computer in use must be connected to the controller via an interface adapter or datalogger in a common network.

Here is a free download : RPT Program Download| link from RESOL website

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