FEMS App my-PV

1. Introduction

Dear customer,

Thank you for choosing the "FEMS App my-PV". You are welcome to send us your suggestions so that we can further improve the quality of our products.

2. Installation of the FEMS App my-PV

  • Use these instructions to grant FEMS write access to my-PV products.

  • For general instructions on how to install a FEMS App, cf. AppCenter documentation.

  • Launch the FENECON App.

myPV installation 1

In the AppCenter, select FEMS App my-PV.
myPV installation 2

  1. The name of the heating element can be specified as an Alias, e. g. AC•Thor domestic hot water storage tank.

  2. Enter the IP address of the my-PV product in the IP Address field. This can be determined as described here.

  3. You must also specify the maximum power rating of the heating element, e. g. 3000 W for the AC•Thor.

Complete the installation by clicking INSTALL APP.

2.1. IP address of the my-PV product

  1. Find the IP address of your router’s web interface, provided that the router is on the same network as the my-PV product.

  2. Alternatively, you can find the IP address using the my-PV Cloud:

myPV cloud 1

Under Settings IP Settings Current IP Address.

2.2. Settings in the my-PV Cloud

In addition, the IP address of the FEMS must be entered in the my-PV Cloud so that the my-PV product can be controlled by the FEMS.

myPV cloud 2

In the my-PV Cloud, navigate to Settings and then to Control Settings.

  1. For the Control Type, select Modbus TCP.

  2. Enter the IP address of FEMS.

Save the settings.

The connection to FEMS has now been established.

3. How to use the FEMS App my-PV

Once the installation is complete, the FEMS App my-PV my-PV will be available in the side menu of the FENECON app (shown here: desktop view):
myPV side menu

3.1. my-PV functionality

3.1.1. my-PV Main Window

If you click or tap directly on my-PV in the side menu, the main window will display the current water temperature, the historical trend (4 hours), and the future trend (20 hours) of the water temperature in a graph. The heating output is also displayed.

myPV main

3.1.2. History

Select History from the side menu, and the main window will display the historical data for your heating element (water temperature/heating output).

If you use a temperature sensor, its data will also be displayed in the history.
myPV history

3.1.3. Task scheduling

Using the Schedule settings, you can manually specify, with 15-minute precision, how the heating element should operate in the future.

Using ADD, you can create tasks that override the Base Mode of the heating element according to your preferences and within the specified limits:

myPV task creation

Set the desired Heating Mode, its repeat interval, and the start and end times.

Click + ACCEPT to save the settings and save the task.

The task will be added to your FEMS schedule.

The task is now visible in the main window under Schedule:

myPV task scheduling

The assignment can be edited or deleted at any time.

3.1.4. Settings

In the side menu, the bottom item is Settings. Here, you can set the Base Mode for the heating element, which is active outside the time periods defined by the Schedule:

AC Elwa base modes

Description of the Base Modes:

Fast heat

The heating element operates at full power to heat the water as quickly as possible. This setting is particularly useful, e. g. when combined with Time-of-Use tariffs during periods of low electricity prices.

PV surplus

In this mode, the PV system’s excess production—which would otherwise be subject to grid feed-in—is used for heating.

No heating

The heating element is inactive.