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DomBus37 - 12 inputs, 3 AC inputs, 3 relay output, DomBus and Modbus RTU protocols for domotica systems

Name: DomBus37 - 12 inputs, 3 AC inputs, 3 relay output, DomBus and Modbus RTU protocols for domotica systems
Brand: Creasol
SKU: creDomBus37
Price: 54.66 EUR
Availability: InStock

DIN RAIL module, 115x90x40mm, supporting both DomBus and Modbus RTU protocols.

It integrates 12x low voltage analog/digital inputs, 3x relays outputs, 3x 115Vac / 230Vac inputs. Optionally it is able to control and monitor the power supply fed to a burglar alarm external siren. Useful to make burglar alarm systems with home automation controllers like Domoticz, Home Assistant, OpenHAB, ...

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Description
Product Details

Creasol DomBus37 is a DIN RAIL module, 115x90x40mm, supporting both DomBus and Modbus RTU protocols.

It can be connected to the home automation controller by a RS485 serial bus (4 wires, 2 for 12/24V power supply, and 2 for data at 115200bps).

As other DomBus devices, DomBus37 is designed to consume low power, be reliable, fully configurable and easy to use. Each input port is fully configurable, for example as analog or digital input, twinbutton (double button connected to a single port), counter, buzzer, NTC 10k, ... Analog ports are able to decode single, double, triple, quadruple balanced alarm sensors.

Features

1x 250V 10A relay with N.O. (SPST) connection, configurable in normal or low power mode, blind mode (UP/DOWN motor) and in flash mode (connected to a blinker lamp or siren)
2x 250V 5A relays with N.O. (SPST) connection, configurable in normal or low power mode, blind mode (UP/DOWN motor) and in flash mode (connected to a blinker lamp or siren)
12x configurable I/Os, each one can be set as digital input (with internal pullhigh, active low), digital input with pulldown (active high), analog input, twinbutton input (double pushbutton connected to a single module input), counter (energy meter, gas or water meter); an internal 10k pullup that can be activated by PCB jumper (for twinbutton and NTC10k sensors)
3x 115Vac / 230Vac optoisolated inputs, that can be used as digital input (to detect voltage on appliances, PIRs, and detect power outage) or counter (meter with AC output)
Optionally, activated by some PCB jumpers, it can supply an alarm siren monitoring the siren voltage, current and status / errors.
Monitor bus voltage
The 12 input ports are protected by clamping diodes and can operate between -40V and +40V.
9-35Vdc power supply (internally regulated by a high efficiency switching mode power supply circuitry that minimize power consumption and dissipation)
low power consumption: 12mW normally, 180mW with the 3 relays ON
115200 bps RS485 bus (max length: 1km)
DomBus proprietary protocol, working with Domoticz home automation system, or Modbus RTU standard protocol, working with Node-RED, Home Assistant, OpenHAB, and many other systems.

Warnings

Do not mix high and low voltage devices on relay outputs: relays may be used all connected to 115 / 230Vac devices, or all connected to 30Vmax devices.
Use a 4 wires shielded cable for the bus, using two lines to feed power supply (12 or 24Vdc) protected by a fuse.
To reduce noise and reflections on the bus, enable the termination resistor (shorting Rbus PCB jumper behind the LED) on the two furthest ends of the bus.

Complete information and application notes at https://www.creasol.it/DomBus37

DomBus37 Ports capabilities

Default address: 0xff37

Port#	Name	Capabilities	Default configuration	Description
1	IN1	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
2	IN2	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
3	IN3	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
4	IN4	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
5	IN5	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
6	IN6	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
7	IN7	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
8	IN8	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
9	IN9	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
10	IN10	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
11	IN11	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor).
12	IN12	IN_DIGITAL, IN_DIGITAL_PULLDOWN, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, CUSTOM	IN_DIGITAL	Input, with optional 10k pullup (pcb jumper) and internal pulldown (activated when configured as IN_DIGITAL_PULLDOWN). If connected to a single pushbutton switch or an alarm sensor, the common is GND (when switch is ON, it have to short the port to GND). Can be connected to external NTC thermistor (air or water temperature sensor). Configure as CUSTOM to enable siren power supply management and monitoring
13	INAC1	IN_AC, IN_COUNTER	IN_AC	Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON).
14	INAC2	IN_AC, IN_COUNTER	IN_AC	Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON).
15	INAC3	IN_AC, IN_COUNTER	IN_AC	Optoisolated input, that can be connected to a circuit breaker (to notify power outages, expecially for fridges and heat pumps), PIRs with 230V output (to monitor presence), light and appliances (to monitor when light or devices are ON).
16	RL1	OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND,OUT_FLASH	OUT_RELAY_LP	SPST relay output, NO contact, 10A 250Vac or 30Vdc output capability. Relay contact is protected by varistor.
17	RL2	OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND,OUT_FLASH	OUT_RELAY_LP	SPST relay output, NO contact, 5A 250Vac or 30Vdc output capability. Relay contact is protected by varistor.
18	RL3	OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND⁽¹⁾,OUT_FLASH	OUT_RELAY_LP	SPST relay output, NO contact, 5A 250Vac or 30Vdc output capability. Relay contact is protected by varistor.
19	VBus	CUSTOM	CUSTOM	12-24V bus voltage, in mW (for example 13508 for 13.508mV)
20	S.Volt	CUSTOM	CUSTOM	Voltage on the Siren port (IN12 terminal block) in mV. For more information, check paragraph below.
21	S.Curr	CUSTOM	CUSTOM	Current on the Siren port (IN12 terminal block) in mA. For more information, check paragraph below.
22	S.On	CUSTOM	CUSTOM	On/Off entity, to enable/disable power supply to the siren. For more information, check paragraph below.
23	S.State	CUSTOM	CUSTOM	Siren power status. For more information, check paragraph below.

(1): can be used as BLIND output, to open a blind/curtain, but only the previous port can be configured in Domoticz as OUT_BLIND because, when configured as OUT_BLIND, DomBus device automatically configure the next port to drive a relay in open direction.