Temperature data is returned as a 16-bit integer. To get the actual temperature in Celsius, convert the returned hexadecimal value to decimal and divide by 10 If the register returns (219 decimal), the temperature is 21.9 raised to the composed with power C Negative Values:
NT18B07 7-channel NTC temperature interface board * Registers 0-6 contain temperature readings in 0.1 degree celcius increments. * Read the Docs nt18b07 manual
Wire each NTC sensor to its respective channel terminals. Ensure all connections are secure; incomplete wiring can lead to short circuits or inaccurate readings. 3. Programming with Modbus RTU Temperature data is returned as a 16-bit integer
Before wiring, ensure your power supply and environment match the module’s requirements: Operating Voltage: DC 6V–24V. Working Current: 8mA–15mA. 7 independent channels for NTC sensors. Adaptive Sensor: Ensure all connections are secure; incomplete wiring can
Connect your DC power (6–24V) and the RS485 A/B lines. It is highly recommended to use shielded twisted-pair cables for RS485 to minimize interference in industrial settings. Sensor Connection:
If the highest bit is 1, the value is negative. Subtract 65536 from the decimal value before dividing by 10. 4. Advanced Features and Troubleshooting NT18B07 7-channel NTC temperature interface board
Automatic reporting interval (0 = disabled, 1–255 seconds). Device RS485 Address (Station Address). Baud rate setting. Reading Temperature Data