Supports up to 247 modules via A0-A5 modification (default address depends on model).
was pressed against the iron skin of a high-speed transformer, feeling the heat rise as the morning workload began.
The board itself features a 1% resistance measurement accuracy across a theoretical range of -273°C to +200°C.
Since direct manufacturer links often rot, here are the three most reliable methods to obtain the official in PDF format.
The NT18B07 responds exclusively to standard Modbus RTU frame queries. Data packets are verified sequentially via a standard algorithm to ensure error-free transmission. Register Address Mapping nt18b07 manual
Comprehensive Guide to the LC12S NT18B07 Serial Reader Module The LC12S NT18B07
Values are structured as two's complement. If the raw value exceeds 32767 ( 0x7FFF ), subtract 65536 and divide by 10. For example, a raw reading of 0xFF9C translates to a decimal value of 65436. Subtracting 65536 yields -100, which evaluates to -10.0°C . Advanced Multi-Device Cascading
The communicates strictly via the standard Modbus RTU protocol . It natively supports Function Code 03 (Read Holding Registers) and Function Code 06 (Write Single Register). Register Address Allocation Map Register Address (Hex) Register Address (Dec) Function / Description 0x0000 Signed 16-Bit Int CH1 Temperature Data (Value multiplied by 10) 0x0001 Signed 16-Bit Int CH2 Temperature Data (Value multiplied by 10) 0x0002 Signed 16-Bit Int CH3 Temperature Data (Value multiplied by 10) 0x0003 Signed 16-Bit Int CH4 Temperature Data (Value multiplied by 10) 0x0004 Signed 16-Bit Int CH5 Temperature Data (Value multiplied by 10) 0x0005 Signed 16-Bit Int CH6 Temperature Data (Value multiplied by 10) 0x0006 Signed 16-Bit Int CH7 Temperature Data (Value multiplied by 10) 0x0002 (Config) 16-Bit Unsigned Read/Write Modbus Slave Device ID Address (Default = 1) 0x0003 (Config) 16-Bit Unsigned Read/Write Serial Baud Rate Config Code (Default = 3) 0x0004 (Config) Signed 16-Bit Int Read/Write Global Temperature Correction Value (Offset value * 10) Data Formatting and Conversions Interpreting Temperature Readings
This article is based on the LC12S NT18B07 Manual Overview document. If you'd like, I can: Supports up to 247 modules via A0-A5 modification
sensor:
modbus: - name: "NT18B07_Hub" type: serial baudrate: 9600 method: rtu port: /dev/ttyUSB0 sensors: - name: "Temp Ch0" slave: 1 address: 0 scale: 0.1 data_type: int16 unit_of_measurement: "°C" Use code with caution. 2. ESPHome Configuration
Safety is the primary focus of the NT18B07 manual. The tool features a dual-mode power switch that allows users to toggle between sequential fire—used for precision placement—and contact fire, commonly known as bump firing, for rapid work. Users must always engage the trigger lock when the tool is not in use to prevent accidental discharge. Furthermore, the manual emphasizes the importance of wearing ANSI-approved safety glasses, as 18-gauge brads are thin and can occasionally deflect if they hit a dense knot or a metal fastener hidden within the workpiece.
The raw Modbus value must be divided by 10.0 to obtain the temperature in Celsius. For example: Since direct manufacturer links often rot, here are
Lost the manual? Here are solutions to the top 5 problems owners of the NT18B07 face.
Current temperature for Channels 1 through 7. Register 254 (0x00FE): Device Slave ID (Read/Write). Installation and Wiring
The designed for industrial automation, smart building monitoring, and data logging systems. Operating on the Modbus RTU protocol , this compact hardware unit allows hardware engineers and developers to aggregate up to seven independent temperature sensors over a single serial communications link, minimizing wiring and maximizing data density.
: The number of channels is fixed at seven.
The is a 7-channel RS485 NTC thermistor temperature acquisition module commonly used for industrial monitoring and data logging.