Reduxi Gateway setup in Reduxi Gateway Configurator page

Reduxi Gateway can be used as a measurement device using current sensors, a controllable device to connect Smart Grid contacts or similar, or a basic gateway to convert RS485 signal to TCP/IP.

Reduxi Gateway is an add-on device to the Reduxi controller which serves as the primary logic unit. Reduxi Gateway offers two RS485 ports, three inputs for current sensors, and two relay outputs. It can be connected to the local area network using Ethernet cable or WiFi. With Reduxi Gateway the RS485 signal can be converted to TCP/IP. With this functionality old devices that don't support TCP/IP become accessible to the local network (LAN, WLAN), furthermore, conversion to TCP/IP becomes useful when wiring to the device we want to measure is too complicated, instead the Reduxy Gateway is placed near the device for connection via RS485 and communication to Reduxi Controller via TCP/IP.

Using current sensors you can use Reduxi Gateway as a meter, measuring the energy consumption of the measured device by grabbing phase lines of the device with current sensors. Reduxi Gateway measures the current flow (absolute value, without knowing the flow direction), and uses 230V as a default voltage, or it takes voltage per phase from one of the devices connected to the Reduxi controller which will provide voltage measurements.

Through relay output, Reduxi Gateway allows control of devices that support ON/OFF regulation, meaning Reduxi Gateway can turn them off or on. One of the use cases is Smart Grid or EVU contact, where you can control heat pumps by decreasing or increasing their consumption. It could also be used for other applications, where a basic ON/OFF device regulation is used.

Access to the user manual can be found: the Reduxi Gateway manual

 

1.1 Indication lights of Reduxi Gateway

For a quick overview of Reduxi Gateway's state of operation, indications lights are given:

Explanation of each light:

• LED 1:
  • green = power supply ON
  • blue = connected to the internet
  • red= error, white = update/reset
    
• LED 2:
  • green blinking = reading on PORT 1
  • blue blinking = writing on PORT 1
    
• LED 3:
  • green blinking = reading on PORT 2
  • blue blinking = writing on PORT 2
    
• LED 3:
  • yellow = Modbus communication
    
• LED 4:
  • green = relay 1 ON
  • bule = relay 2 ON
  • turquoise = relay 1 and relay 2 ON

 

Symbolic picture of Reduxi gateway:

2. First connection to Reduxi Gateway

Reduxi Gateway offers two connection options, the first is to connect with an Ethernet cable directly to the network (LAN), and the second is to connect to Reduxi Gateway's access point.

 

2.1 Wired connection

Physically connect Reduxi Gateway to the local network (LAN), to an internet switch or router. First, make sure that Reduxi Gateway is plugged into the power supply, which is included in the Reduxi Gateway delivery package. Once connected to LAN, the Reduxi Gateway configurator should appear ("popup") automatically in your default browser, in case it doesn't please follow instructions from 2.3 Sing-in to Reduxi Gateway Configurator.

 

Symbolic picture of Reduxi Gateway connection to switch/router:

 

2.2 Wireless connection

To connect to the Reduxi Gateway's Wi-Fi access point, check available Wi-Fi on your smartphone or personal computer.

Wi-Fi SSID is "GATEWAY", NO password is needed to connect to this WiFi network. Once connected to WiFi, the Reduxi Gateway configurator should appear ("popup") automatically in your default browser, in case it doesn't open please follow instructions from 2.3 Sing-in to Reduxi Gateway Configurator.

 

2.3 Sing-in to Reduxi Gateway Configurator

Once connected to the WiFi or LAN, the configurator should appear ("popup") automatically in your default browser, in case it doesn't open the browser enter the following URL address:  http://gateway.local, if the configurator is still unreachable please check your internet connection, and check that you are connected to the same LAN or WLAN like Reduxi Gateway. Once connected to the Reduxi Gateway configurator, log-in parameters are the following:

• Username: admin
• Password: admin

 

2.3.1 Configure network settings for Wired network connection

Since the DHCP protocol for assigning the IP of Reduxi Gateway is set as the default protocol, we strongly recommend setting the static IP of Reduxi Gateway. Go to Network settings/Wired network choose protocol to STATIC and set other parameters:

• IP address: set IP,
• Netmask: set Netmask (usually 255.255.255.0),
• Gateway: set your network Gateway (if needed),
• Primary DNS: set your DNS (if needed),
• Secondary DNS: set your DNS (if needed),
• Click the "Save" button under the network settings

 

2.3.2 Configure network settings for Wireless network

First, fill in the needed information about the local WiFi chosen as the preferred WLAN. Scan for the available WiFi networks by clicking on the WiFi sign icon on the right. Once selected enter password and connect.

Since the DHCP protocol for assigning the IP of Reduxi Gateway is set as the default protocol, we strongly recommend setting the static IP of Reduxi Gateway. Go to Network settings/Wireless network choose protocol to STATIC and set other parameters:

• IP address: set IP,
• Netmask: set Netmask (usually 255.255.255.0),
• Gateway: set your network Gateway (if needed),
• Primary DNS: set your DNS (if needed),
• Secondary DNS: set your DNS (if needed),
• Click the "Save" button under the network settings

 

2.3.3 Home page of the Reduxi Gateway

After entering the Reduxi Gateway configurator the home page opens, where data are available for the currents, voltages (data are transferred from the Reduxi controller), and power of the measured device. 

 

2.3.4 Reduxi Gateway Serial port settings

If  RS485 ports are used for the serial connection, it is necessary to set the following settings:

• Baud rate: set Baud rate,
• Data Bits: set the number of data bits,
• Stop bits: set the number of stop bits,
• Parity: choose parity.
• after all serial settings, click the "Save" button at the bottom right.

 

2.3.5 Reduxi Gateway MQTT settings

The Reduxi Gateway device enables the configuration and readings from the device using the MQTT broker to which the device connects. For successful communication with the MQTT broker, it is necessary to fill in the following information:

• Enable MQTT: Yes/No, select Yes,
• Host: enter the URL where the broker is located,
• Username and password: Enter the username and password used to log in to the broker's URL,
• Use SSL: if SSL is used,
• Verify server cert: For the example of using a server certificate,
• Server CA chain (PEM format): select the server certificate file,
• Client private key (PEM format): select the server certificate file,
• Client public key (PEM format): select the public key file,
• after all MQTT settings, click the "Save" button at the bottom right.

Instructions for using the MQTT broker are available at MQTT instructions.

 

2.3.6 Reduxi Gateway System settings 

The following options are specified in the system settings:

• Username: cannot be changed,
• Password: enter a new password,
• Password confirmation: re-enter the new password,
• Current 1/2/3: set the current ratio of the current sensor,
• Relay 1/2 - default: specify the relay's docked position,
• Enable Modbus TCP/IP: in the case of reading on RS-485 inputs, it is necessary to enable Modbus TCP/IP,
• after all system settings, click the "Save" button at the bottom right.

 

3. Add Reduxi Gateway to Reduxi Controller in Reduxi Controller Configurator

3.1 Ping test between Reduxi controller and Reduxi Gateway in same (LAN,WLAN) network

Once Reduxi Controller and Reduxi Gateway are connected to the same (LAN, WLAN) network, a "ping test" can be performed to make sure that the Reduxi Controller can access the Reduxi Gateway.

Login to the Reduxi configurator application and click on the "Setting" button down left on the home page.

To access a "Ping test" addition three steps (click) are needed:

Click one: + sign System; Click two: + sign Tools; Click three: Ping test

Ping test:

To perform the ping test, just enter the IP for Reduxi Gateway and click the "Test" button. You can use an IP address or DNS address which is the gateway.local. 

Ping test can have two responses:

1. Ping test is successful:

1. Ping test failed:

 

3.2 Reduxi Gateway as Reduxi meter

An example of how to add a Reduxi Gateway as a Reduxi meter can be found on the link: Kronoterm Heat pump with SG ready contacts, where Reduxi Gateway serves as an energy meter for the heat pump in example. Relays of Reduxi Gateway have to be configured accordingly, as described in the example.

Symbolic image from example:

Modbus settings from example for the Redxi meter :

Current sensors and relay output settings from example for Reduxi meter:

 

3.3 Reduxi Gateway for use of RS485

In contrast to point 3.2, Reduxi Gateway can be used as an add-on device for Reduxi Controller, placed to another location, where a connection between the Controller and Gateway needs to be established (2.1.3 Testing connection between Reduxi Gateway and Reduxi Controller on LAN).

An example of Reduxi Gateway with the use of RS485 for connection to Smart meter Iskraemeco AM550:

Connect to Smart meter Iskraemeco AM550 

Symbolic image from example:

 

Modbus settings from the example for Reduxi Gateway used with RS485:

 

After successfully adding the device and checking the values, the device can be inspected and controlled via the Reduxi application.