Creasol DomBus34 - Din rail module supporting up to 4 energy meters, 2 relay outputs, 1 AC input, 2 inputs

Name: Creasol DomBus34 - Din rail module supporting up to 4 energy meters, 2 relay outputs, 1 AC input, 2 inputs
Brand: Creasol
SKU: creDomBus34
Price: 49.53 EUR
Availability: InStock

0 Review(s)

DomBus34 is a DIN-RAIL module, 54mm wide, designed to interface up to 4 power/energy meters, type DDS 238-2 ZN/S (Modbus), to measure power and energy (both imported and exported), voltage frequency and power factor.
It implements 2 relay outputs 250V 5A SPST with overvoltage protection, 1 AC input 110-240Vac, and 2 low-voltage inputs that can be connected to pushbuttons and switches, double pushbuttons and counters.

Reference: creDomBus34

€70.76

€49.53 - 30%

Tax included Shipped in 1 working day

Volume discounts

Quantity	Unit discount	Price	You Save
1	30%	€49.53	€21.23
2	32%	€48.12	€45.29

Quantity

Available

Full support: most products are designed by us!

Email: store@creasol.it - Telegram: CreasolTech - Whatsapp: +393283730010

Orders are shipped within 1 working day

Priority mail: fast and cheap - Express Courier: fast and safe

24 months warranty, easy return/refund in case of problem

Before returning products, please contact us

Energy monitor module with 2 relay outputs, 1 AC input and 2 I/Os DomBus34 is a DIN-RAIL module, 54mm wide, designed to interface up to 4 power/energy meters, type DDS 238-2 ZN/S (Modbus), to measure power and energy (both imported and exported), voltage frequency and power factor.
It implements 2 relay outputs 250V 5A SPST with overvoltage protection, 1 AC input 110-240Vac, and 2 low-voltage inputs that can be connected to pushbuttons and switches, double pushbuttons and counters.

It's designed to activate loads based on power availability, for example when photovoltaic or wind system is producing, and to display nice charts with statistics about energy production/usage with comparisons in a year-by-year basis.

Load switching can be achieved using DCMD commands, but as it works with Domoticz home automation system, it's also easy to make visual and text scripts to do even complex automations.

As other DomBus modules, all ports can be configured in many different ways, and also this module supports DCMD, commands sent to the same or other modules to perform simple actions, that permit to achieve high reliability (DCMD commands work even if domotic controller is not operational) and easy programming (don't need to create automations in the domotic controller, just configure DomBus ports to perform actions on events). Last, but not least, as other DomBus modules, it's optimized to get low power consumption, less than 10mW normally (0.75mA @13.6V) and less than 150mW when all relays are ON (10mA @13.6V).

Domoticz module designed to measure power/energy and switch loads based on power availability

Features

1x RS485 bus to communicate with domotic controller and other DomBus modules
1x RS485 bus to communicate with up to 4 power/energy meters DDS 238-2 ZN/S (Modbus)
2 relay outputs, SPST 250Vac 5A max, with overvoltage protection (varistors)
1 AC input, 110-240Vac, to monitor voltage on loads and detect power outage
2 programmable low-voltage inputs
supports DCMD commands, that are used to set outputs on events independetly by the domotic controller
8-25Vdc power supply
10mW power consumption
150mW max power consumption, with both relays ON
52x89x65mm

How to manage one or more energy meters

DDS238-2 ZN/S energy meters are factory programmed with Modbus address = 1. Everytime a new energy meter is connected to the Modbus, its default address should be changed as 2, 3, 4 or 5, by selecting the device M1 Addr and writing in the device Description ADDR=2 , for example: in this way the energy meter with Modbus addr=1 will be programmed with the new selected address.
Anytime a new energy meter is added, a new set of device will be enabled, displaying the current import and export power/energy, voltage, power factor and frequency.

DCMD commands

*Please check the page in English to get the correct values of commands!

While it's possible to do any automations using the domotic controller features, essential automations can be performed using the DCMD commands that are executed directly by the DomBus module. DCMD commands should be specified in the device description, work even in case that domotic controller is offline and can be sent to the same module itself or to other DomBus modules connected to the same bus.

The syntax is DCMD(Event:ValueLow:ValueHigh)=ModuleAddress.ModulePort:Command:Value

where ValueLow, ValueHigh, Value are optional parameters.


Event	Description	Example
OFF	This even occurs when input (IO1, IO2 or INAC) goes OFF	DCMD(OFF)=3401.1:OFF When input goes off, turns OFF also port 1 of module 3401 DCMD(OFF)=3102.1:OFF When input goes off, turns OFF also port 1 of module 3102
ON	This even occurs when input (IO1, IO2 or INAC) goes ON	DCMD(ON)=3401.1:ON:90s When input goes on, turns ON port 1 of module 3401 for 90s DCMD(ON)=3102.1:ON When input goes on, turns ON port 1 of module 3102
PULSE	Input is pulsed ON for less than 0.5s	DCMD(Pulse)=13.3:TOGGLE When input is pulsed shortly, send command to module 13 port 3 to toggle it's output OFF->ON or vice versa
PULSE1	Input is pulsed ON for about 1s	DCMD(Pulse1)=13.3:ON When input is pulsed for 1s, turns ON port 3 of module 13
PULSE2	Input is pulsed ON for about 2s	DCMD(Pulse2)=13.3:OFF When input is pulsed for 2s, turns OFF port 3 of module 13
PULSE4	Input is pulsed ON for about 4s	DCMD(Pulse4)=13.4:ON:2h When input is pulsed for 4s, turns ON port 4 of module 13 for 2 hours
VALUE	Sensor value is ≥ ValueLow and < ValueHigh Command is repeated every 30s if the comparison matches.	DCMD(Value:0:100)=31.8:OFF DCMD(Value:1400:10000)=31.8:ON Turns ON port 31.8 if exported power (from photovoltaic?) is ≥ 1400W, and disable when the exported power falls below 100W DCMD(Value:0:248)=34.2:OFF DCMD(Value:252:280)=34.2:ON Turns ON port 34.2 if voltage is >= 252V, and turn it OFF if voltage falls below 248V

A possible application of DCMD commands is to enable a load when there is enough exported energy (from solar photovoltaic), and disable it when solar production disappears, or disconnect a photovoltaic string when inverter AC output is too high, and enable it when AC output is normal.

Assuming that the DomBus34 module has address 3401, selecting the Grid Import Energy device and writing in the description field

DCMD(Value:1800:65000)=3401.1:ON

it's possible to configure the device to automatically enable relay1 when the export power is greater or equal to 1800W (for example to activate a boiler or another load).

Writing the following command on the Grid Import Energy

DCMD(Value:500:65000)=3401.1:OFF,

the DomBus34 module will be configured to disable relay1 when the imported power is greater than 500W. This behaviour is managed internally by the DomBus34 module, and domotic controller will be informed about the state of the Relay1 output.

Similarly, writing the following commands to the the Grid Voltage device

DCMD(Value:252:280)=3401.2:ON, DCMD(Value:0:248)=3401.2:OFF
it's possible to activate relay2 output when the voltage raises to 252V or above, disabling relay2 when voltage falls below 248V: this can be useful during the Summer to avoid inverter disconnections (overvoltage protection) by enabling a load or disconneting a photovoltaic string.

If the output to enable/disable is in another DomBus module, just specify it's address (e.g. 0001.8) and that output will be enabled/disabled based on the current power or voltage value.

Smart-Home Creasol DomBus modules for Domoticz, Home Assistant, Node-RED, OpenHAB, ...

The following video shows a presentation of some domotic modules designed and produced in Italy by Creasol to make a reliable, easy and power-optimized home automation system.

The next video shows our Smart EVSE module that can be used to charge the electric car by using only solar power, or adding 25/50/75/100% of available power from the electrical grid.

Our industrial and home automation modules are designed to be

very low power (around 10mW with relays OFF)
reliable (no disconnections)
bus connected (no radiofrequency interference, no battery to replace).

Modules are available in two version:

with DomBus proprietary protocol, working with Domoticz only
with Modbus standard protocol, working with Home Assistant, OpenHAB, Node-RED

Home automation system using DomBus modules

Store website - Information website

For our products we can offer FULL SUPPORT and CUSTOMIZATION: please contact us by Email or Telegram

DomBusEVSE - EVSE module to build a Smart Wallbox / EV charging station

Complete solution to make a Smart EVSE, charging the electric vehicle using only energy from renewable source (photovoltaic, wind, ...), or adding 25-50-75-100% of available power from the grid.

Single-phase and three-phases, up to 36A (8kW or 22kW)
Needs external contactor, RCCB (protection) and EV cable
Optional power meter to measure charging power, energy, voltage and power factor
Optional power meter to measure the power usage from the grid (not needed if already exists)
Two max grid power thresholds can be programmed: for example, in Italy who have 6kW contractual power can drain from the grid Max (6* 1.27)=7.6kW for max 90 minutes followed by (6* 1.1)=6.6kW for another 90 minutes. The module can use ALL available power when programmed to charge at 100%.
Works without the domotic controller (stand-alone mode), and can also work with charging current set by the domotic controller (managed mode)

DomBusTH - Compact board to be placed on a blank cover, with temperature and humidity sensor and RGW LEDs

Compact board, 32x17mm, to be installed on blank cover with a 4mm hole in the middle, to exchange air for the relative humidity sensor. It can be installed in every room to monitor temperature and humidity, check alarm sensors, control blind motor UP/DOWN, send notifications (using red and green leds) and activate white led in case of power outage.

Includes:

temperature and relative humidity sensor
red, green and white LEDs
4 I/Os configurable as analog or digital inputs, pushbuttons, counters (water, gas, S0 energy, ...), NTC temperature and ultrasonic distance sensors
2 ports are configured by default as open-drain output and can drive up to 200mA led strip (with dimming function) or can be connected to the external module DomRelay2 to control 2 relays; they can also be configured as analog/digital inputs, pushbuttons and distance sensors.

DomBus12 - Compact domotic module with 9 I/Os

Very compact, versatile and cost-effective module with 9 ports. Each port can be configured by software as:

analog/digital inputs
pushbutton and UP/DOWN pushbutton
counters (water, gas, S0 energy, ...)
NTC temperature and ultrasonic distance sensors
2 ports are configured by default as open-drain output and can drive up to 200mA led strip (with dimming function) or can be connected to the external module DomRelay2 to control 2 relays.

DomBus21 - Power optimized module with 3 High Power latching relays, 1 AC input and 4 low voltage inputs

Very low power consumption module designed to enable up to 3 high power loads, up to 15A (3kW).

3x high power latching relays SPST 15A: latching relay consumes nothing when ON
1x 230V AC opto-isolated input used as power outage detector, and also as zero-crossing detector to permit switching relays On/Off minimizing in-rush current (for capacitive loads) and overvoltage (for inductive loads)
4x low voltage inputs, that can be connected to pushbuttons, switches, meters with pulsed output, NTC temperature sensors, ...

DomBus23 - Domotic module with many functions

Versatile module designed to control gate or garage door.

2x relays SPST 5A
1x 10A 30V mosfet (led stripe dimming)
2x 0-10V analog output: each one can be configured as open-drain output to control external relay
2x I/O lines, configurable as analog/digital inputs, temperature/distance sensor, counter, ...
2x low voltage AC/DC opto-isolated inputs, 9-40V
1x 230V AC opto-isolated input

DomBus31 - Domotic module with 8 relays

DIN rail low profile module, with 8 relays and very low power consumption:

6x relays SPST 5A
2x relays STDT 10A
Only 10mW power consumption with all relays OFF
Only 500mW power consumption with all 8 relays ON !!

DomBus32 - Domotic module with 3 relays

Versatile module with 230V inputs and outputs, and 5 low voltage I/Os.

3x relays SPST 5A
3x 115/230Vac optoisolated inputs
Single common for relays and AC inputs
5x general purpose I/O, each one configurable as analog/digital inputs, pushbutton, counter, temperature and distance sensor.

DomBus33 - Module to domotize a light system using step relays

Module designed to control 3 lights already existing and actually controlled by 230V pushbuttons and step-by-step relays. In this way each light can be activated by existing pushbuttons, and by the domotic controller.

3x relays SPST 5A
3x 115/230Vac optoisolated inputs
Single common for relays and AC inputs
5x general purpose I/O, each one configurable as analog/digital inputs, pushbutton, counter, temperature and distance sensor.

Each relay can toggle the existing step-relay, switching the light On/Off. The optoisolator monitors the light status. The 5 I/Os can be connected to pushbuttons to activate or deactivate one or all lights.

DomBus36 - Domotic module with 12 relays

DIN rail module, low profile, with 12 relays outputs and very low power consumption.

12x relays SPST 5A
Relays are grouped in 3 blocks, with a single common per block, for easier wiring
Only 12mW power consumption with all relays OFF
Only 750mW power consumption with all 12 relays ON !!

DomBus37 - 12 inputs, 3 115/230Vac inputs, 3 relay outputs

Module designed to be connected to alarm sensors (magnetc contact sensors, PIRs, tampers): it's able to monitor mains power supply (power outage / blackout) and also have 3 relays outputs.

12x low voltage inputs (analog/digital inputs, buttons, alarm sensors, balanced double/triple biased alarm sensors, counters, temperature and distance sensors, ...)
3x 115/230Vac optoisolated inputs
2x relays SPST 5A
1x relay SPST 10A

DomBus38 - 4 SPDT 10A relays, 2 SPST 10A relays, 1 AC input, 12 low voltage inputs

DIN rail module designed for burglar alarm system.

4x relays SPDT (normally open + close contacts), 10A
2x relays SPST 10A
1x 115/230Vac optoisolated inputs, that can be used to monitor 230V voltage presence (blackout detector) and it's also used as zero-crossing detector to minimize in-rush current and overvoltage when a relay switches On/Off
12x low voltage inputs (analog/digital inputs, buttons, alarm sensors, balanced double/triple biased alarm sensors, counters, temperature and distance sensors, ...)

DomBusTracker - Smart dual-axis sun tracker to optimize photovoltaic production

DIN rail module that control azimuth + elevation/tilt motors of a sun tracker, to maximize photovoltaic energy production during the day and seasons.

Uses a deep-hole sun sensor, to optimize production with both sunny and cloudy weather
Works in stand-alone mode (no need for external controller)
Can be connected to Domoticz for monitoring and controlling the motors position

DomRelay2 - 2x relays board

Simple module with 2 relays, to be used with DomBus modules or other electronic boards with open-collector or open-drain outputs

2x 5A 12V SPST relays (Normally Open contact)
Overvoltage protection (for inductive loads, like motors)
Overcurrent protection (for capacitive laods, like AC/DC power supply, LED bulbs, ...)