485/232 modbus ультразвуковой датчик отклонения препятствий | Инструменты

Modbus thermocouple module   Thermocouple is a kind of temperature measuring sensor. The technical advantage of thermocouple is that the temperature range of thermocouple is wide and the performance is stable. The measurement accuracy is high. The thermocouple is in direct contact with the measured object without being affected by the intermediate medium. The thermal response time is fast The thermocouple responds flexibly to changes in temperature. The measurement range is large. The thermocouple can continuously measure temperature from -40 ~ + 1600 ° C. The thermocouple has reliable performance and good mechanical strength. The thermocouple module developed by Qiangsheng Electronics also uses Modbus-RTU Protocol, can be connected with various PLC, configuration software. The station number can be changed.       Software agreement   Protocol factory default parameters:   Communication interface: RS485 / RS232. Communication format: 1 start bit, 8 data bits, no parity, 1 stop bit. Baud rate: 9600 (can be changed by software). Address: 1 (can be changed by software). Communication method: The monitoring host and the device use the one-to-one (or one-to-many) master-slave query method. Data protocol: MODBUS-RTU   Be careful not to connect the power supply voltage to terminals other than the power supply, otherwise it will burn the module.   Read input data:   Send: 01 03 00 00 00 01 84 0A   Returns: 01 03 02 00 0A 42 DA (represents a temperature of 10 degrees Celsius)       Set station number (function code: 16H)   For example, the initial station number is 01, and the station number is set to 02   Host sends: 01 16 00 00 00 02 C9 C8 (00 02 indicates the set station number)   Slave return: 02 16 00 00 00 FF 08 7A (indicating that the setting is completed, the station number will take effect immediately)       For example, the initial station number is 01, and the station number is set to 03   Host sends: 01 16 00 00 00 03 08 08 (00 03 indicates the set station number)   Slave return: 03 16 00 00 00 FF 09 AB (indicating that the setting is completed, the station number will take effect immediately)       For example, the initial station number is 03, and the station number is set to 04   Host sends: 03 16 00 00 00 04 48 28 (00 04 indicates the set station number)   Slave return: 04 16 00 00 00 FF 08 1C (indicating that the setting is completed and the station number will take effect immediately)