The module’s identifier on the bus is called the , which is the same as the slave address described above. It can be set from 1 to 247.
Stores the Slave ID (default is 1; range 1-247).
12V DC (Standard variant) or 110V–220V AC (Direct-line variant). Check your specific board markings before applying power.
: For distances exceeding 2 meters, use shielded twisted-pair (STP) cables to protect weak analog thermistor signals from cross-talk and ambient electromagnetic interference (EMI). Modbus RTU Communication Protocol nt18b07 manual
Supply power as specified for your specific version (typically 8-24V DC).
: DC 6V to 24V (commonly powered via standard industrial 9V, 12V, or 24V rails).
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The NT18B07 module acts as an interface between B3950 10K NTC sensors and a master device (such as a PLC, SCADA system, or microcontroller) using the Modbus RTU protocol. Key Specifications
Here is a condensed "Quick Start" manual to help you get it up and running.
Up to 247 modules can be linked (using an RS485 repeater for more than 16). Sensor Compatibility: B3950 10K 1% NTC thermistor. Measurement Range: -20°C to +125°C. Accuracy: 1%. Dimensions: 60 * 37 * 14mm. 2. Wiring and Hardware Setup 12V DC (Standard variant) or 110V–220V AC (Direct-line
The display flashes or shows --- if the temperature exceeds this threshold. 4. Operational Examples Scenario A: Greenhouse Heating Control
If your model supports scheduling, you must set the time first.
modbus: - name: NT18B07_Hub type: serial # ... configuration settings (baudrate: 9600, etc.) sensors: - name: "NT18B07 Channel 1 Temp" # ... other config settings address: 0 # CH1 register address scale: 0.1 # Shifts decimal point correctly unit_of_measurement: "°C" Use code with caution. Integrating with ESPHome
Connect the to the Relay NO terminal.