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Modbus and Bluetooth data sending to Node-RED (view source)
Revision as of 11:24, 13 January 2023
, 11:24, 13 January 2023no edit summary
Once done, navigate to '''Services -> Modbus -> MQTT Gateway'''. Follow these steps for the configuration:
Once done, navigate to '''Services -> Modbus -> MQTT Gateway'''. Follow these steps for the configuration:
*Enable the instance
*Enable the instance
*Host: since we are using a local broker on the router – input 127.0.0.1
*'''Host''': since we are using a local broker on the router – input 127.0.0.1
*Leave everything else as default, or adjust according to your needs
*Leave everything else as default, or adjust according to your needs
In the next screen configure settings accordingly:
In the next screen configure settings accordingly:
*Name: RUT_broker for this example
*'''Name''': RUT_broker for this example
*Server: 192.168.10.1 (Router's LAN IP address)
*'''Server''': 192.168.10.1 (Router's LAN IP address)
*Port: Default port 1883
*'''Port''': Default port 1883
*Leave everything else as default or adjust to your needs
*Leave everything else as default or adjust to your needs
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Now we are going to go back to MQTT-out node configuration and adjust settings as shown below:
Now we are going to go back to MQTT-out node configuration and adjust settings as shown below:
*Server: RUT_broker
*'''Server''': RUT_broker
*Topic: request
*'''Topic''': request
[[File:Mqtt out request node red.png|border|500px|class=tlt-border]]
[[File:Mqtt out request node red.png|border|500px|class=tlt-border]]
*'''MQTT-in node''' - configure settings as shown below:
*'''MQTT-in node''' - configure settings as shown below:
*Server: RUT_broker
*'''Server''': RUT_broker
*Action: Subscribe to single topic
*'''Action''': Subscribe to single topic
*Topic: response
*'''Topic''': response
*QoS: 0
*'''QoS''': 0
*Output: auto-detect
*'''Output''': auto-detect
[[File:Mqtt in response node red.png|border|500px|class=tlt-border]]
[[File:Mqtt in response node red.png|border|500px|class=tlt-border]]
Next, navigate to '''Services -> Modbus -> Modbus TCP master'''. Adjust settings here accordingly:
Next, navigate to '''Services -> Modbus -> Modbus TCP master'''. Adjust settings here accordingly:
*Enabled: on
*'''Enabled''': on
*Name: Local_slave (input any preferred name)
*'''Name''': Local_slave (input any preferred name)
*Slave ID: 1
*'''Slave ID''': 1
*IP address: 127.0.0.1 (since we are using local TCP slave - input the IP address if you are using external device as Modbus Slave)
*'''IP address''': 127.0.0.1 (since we are using local TCP slave - input the IP address if you are using external device as Modbus Slave)
*Port: 502
*'''Port''': 502
Add new request and adjust settings according to your needs. For this example, we are going to pull device name from the registers, so our configuration looks like this:
Add new request and adjust settings according to your needs. For this example, we are going to pull device name from the registers, so our configuration looks like this:
*Name: test (input any preferred name)
*'''Name''': test (input any preferred name)
*Data type: ASCII (to get a string of text)
*'''Data type''': ASCII (to get a string of text)
*Function: Read holding registers (3)
*'''Function''': Read holding registers (3)
*First register number: 72
*'''First register number''': 72
*Register count/values: 3
*'''Register count/values''': 3
*Brackets: use brackets
*'''Brackets''': use brackets
*Press enable to enable the Modbus request
*Press enable to enable the Modbus request
To finish up the device configuration, navigate to '''Services -> Data to server.''' Add new data sender and configure settings accordingly:
To finish up the device configuration, navigate to '''Services -> Data to server.''' Add new data sender and configure settings accordingly:
*Enable: on
*'''Enable''': on
*Name: Data_to_node (input any preferred name)
*'''Name''': Data_to_node (input any preferred name)
*Data source: MODBUS data
*'''Data source''': MODBUS data
*Protocol: MQTT
*'''Protocol''': MQTT
*JSON format: {"Router name": %a} - adjust this according to your needs
*'''JSON format''': {"Router name": %a} - adjust this according to your needs
*Segment count: All
*'''Segment count''': All
*URL/Host/Connection string: 192.168.10.139 (virtual machine address)
*'''URL/Host/Connection string''': 192.168.10.139 (virtual machine address)
*Port: 1883
*'''Port''': 1883
*Keepalive:60
*'''Keepalive''': 60
*Topic: rutx (input any preffered topic, make sure to subscribe on the same topic)
*'''Topic''': rutx (input any preffered topic, make sure to subscribe on the same topic)
[[File:Data sender settings to node red with node red broker.png|border|1000px|class=tlt-border]]
[[File:Data sender settings to node red with node red broker.png|border|1000px|class=tlt-border]]