ENGO CONTROLS E10-MBUSW Wi-Fi Modbus Thermostat User Guide

Safety Information:
Use the thermostat in accordance with national and EU regulations. Keep the device dry and for indoor use only. Read the entire manual before installation or use.

Installation:
Installation must be done by a qualified person with appropriate electrical qualifications following the standards and regulations of the country and EU.

Connection Description:

Connection diagram for heating source
Connection diagram to the control box

Connection diagram for pump/actuator

Introduction:
The MODBUS Wi-Fi Thermostat features Modbus RS-485 communication compatibility with the ENGO Smart application, Wi-Fi 2.4 GHz communication standard, TPI algorithm ideal for underfloor heating,and more.

Technical Data:

Power Supply: 230V AC 50 Hz

Max Current: 3(1)A
Setpoint Temp. Range

Display Temp. Accuracy
Control Algorithm

Communication: Modbus RS-485
Input A+/B- Output Control

Protection Class: IP30
Dimensions: 86 x 86 x 39 mm (14 after mounting in a box with a diameter of 60)

Button Description:

1. DOWN button – Change parameter value down

2. UP button – Change parameter value up
3. RESTART button – Restart thermostat

Ambient Backlight:
Ambient Backlight is a subtle LCD backlight helpful in darkened rooms, providing room temperature reading in nighttime conditions.

Frequently Asked Questions

Q: Can the thermostat be used outdoors?
A: No, the thermostat is for indoor use only.

Q: How do I reset the thermostat to factory settings?
A: Hold the restart button until “FA” message appears for factory reset.

Q: What is the voltage range supported by the thermostat?
A: The thermostat supports a power supply of 230V AC 50 Hz.

Product Compliance
This product complies with the following EU Directives:
2014/30/EU, 2014/35/EU, 2014/53/EU, 2011/65/EU.

SAFETY INFORMATION

Use in accordance with national and EU regulations. Use the device only as intended, keeping it in a dry condition. The product is for indoor use only. Please read the entire manual, before installation or use.

Installation:
Installation must be performed by a qualified person with appropriate electrical qualifications, in accordance with the standards and regulations in force in a given country and in the EU. The manufacturer is not responsible for non-compliance with the instructions.

WARNING:
For the entire installation, there may be additional protection requirements, which the installer is responsible for.

Connection description

Connection diagram for heating source
Connection diagram for pump / actuator
Connection diagram to the control box

Legend:

Introduction

An internet, flush-mounted temperature controller that enables energy-efficient control of heating (any type) and cooling. Designed to be controlled wirelessly over a Wi-Fi Internet network or by wires over RS-485 Modbus communication protocol. Can operate according to user settings stored in the ENGO Smart mobile app, which allows control of device parameters from anywhere in the world (e.g. selection of min. and max. set temperature, key lock). Without connection to the app, it works as a non programmable thermostat.

Products features

Technical data

LCD icon description + Button description

Ambient backlight
Ambient Backlight is a subtle LCD backlight very helpful in darkened rooms. The subtle glow provides a room temperature reading in nighttime conditions.

Installation

Installation of the Wi-Fi thermostat in the app
Make sure your router is within range of your smartphone. Make sure you are connected to the Internet. This will reduce the pairing time of the device.

STEP 1 – DOWNLOAD ENGO SMART APP

Download the ENGO Smart app from Google Play or Apple App Store and install
it on your smartphone.

STEP 2 – REGISTER THE NEW ACCOUNT

Click „Sign Up” to create new account.
Enter your e-mail address to which the verification code will be sent.
Enter the verification code received in the email. Remember that you only have 60 seconds to enter the code!

Then set the login password.

STEP 3 – CONNECT THE THERMOSTAT TO WI-FI

After installing the app and creating an account:

On your mobile device, make sure the ENGO Smart has access to permissions (Location, Bluetooth, Nearby devices). Then turn on Bluetooth and Location. Connect to 2.4GHz Wi-Fi network to which you want to assign the device.
Make sure the thermostat is powered on. Then press and hold the buttons on the thermostat for approx. 3 seconds until the display shows „PA”. Then release the keys. The pairing mode will be started up.

In the app, select: „Add Device”.
After finding the thermostat, go „Add”.
Select the Wi-Fi network in which the thermostat will operate and enter the password of this network.

Wait for the app to configure the thermostat with the selected Wi-Fi network
Go „DONE”
The thermostat has been installed and displays the main interface.

General information about MODBUS RTU

The MODBUS RTU structure uses a master-slave system to exchange messages. It allows a maximum of 247 slaves to be connected, but only one master. The master controls the operation of the network and only it sends the request. The slaves do not undertake the transmission themselves. Each communication starts with the master making a request to the Slave, which responds to the master with what has been asked of it. The master (computer) communicates with the slaves thermostats in two-wire RS-485 mode. This uses data lines A+ and B- for data exchange, which MUST be one twisted pair

No more than two cables can be connected to each terminal, ensuring that a ‘Daisy Chain’ (in series) or ‘straight line’ (direct) configuration is used. Star or network (open) connection is not recommended as reflections within the cable can cause data corruption.

MODBUS RTU network operation – Slave mode
The Engo MODBUS controller has the following characteristics when operating as a slave device in a MODBUS RTU network:

Network connection via RS485 serial interface.

Address, communication speed and byte format defined by hardware configuration.
Allows access to all tags and data used in the controller ladder program.
8-bit slave address

32-bit data size (1 address = 32-bit data return)
each MODBUS data register has a size of 2 bytes.

ATTENTION:
Before the controller is connected to the RS-485 network, it must first be properly configured. The controller’s communication parameters can be set in two ways:

through configuration from the ENGO Smart application
or by connecting it to a MASTER computer (e.g. via a USB/RS-485 converter)

ATTENTION:
Connecting unconfigured controllers to the RS-485 network results in their incorrect operation.

RS-485 communication settings of the controller in the app

To access Modbus settings in the controller, follow these steps:

In the application select: „Modbus”.
Confirm with „Next”.
In Modbus settings you can edit the parameters.

RS-485 communication settings

E10 MODBUS supports the following function codes:

#03 – reading n registers (Holding Registers)

#04 – reading n registers (Input Registers)
#06 – write 1 register (Holding Register)

INPUT registers – read only

HOLDING registers – for reading and writing

Factory reset
To RESET Thermostat to factory settings, hold down the & buttons until the FA message appears. Then release the keys. Thermostat will restart, restore default factory settings and displays the home screen. The device will be also removed from app. Factory reset can be done within 5 minutes after power supply connection. If thermostat is connected longer – factory reset cannot be performed.

Producer:
Engo Controls sp. z o.o. sp. k.
Rolna 4 St.
43-262 Kobielice
Poland

www.engocontrols.com

Documents / Resources

ENGO CONTROLS E10-MBUSW Wi-Fi Modbus Thermostat [pdf] User Guide
E10-MBUSW, E10-MBUSW Wi-Fi Modbus Thermostat, Wi-Fi Modbus Thermostat, Modbus Thermostat, Thermostat

References

User Manual

ENGO CONTROLS E10-MBUSW Wi-Fi Modbus Thermostat

Product Usage Instructions