| 摘要 |
PURPOSE: A highway addressable remote transducer (HARD) communication correspondence device is provided to recognize a HART communication correspondence device is under control of a device management apparatus by work staffs on-site by displaying a state of HART communication. CONSTITUTION: A reception unit (11) receives a HART communication signal. A signal detection unit (12) detects a second signal using the HART communication signal received by the reception unit. An indicator unit (17) displays that the second signal is being detected while the second signal is being detected by the signal detection unit. A reception signal judgment unit (13) judges whether the HART communication signal received by the reception unit is a request signal from a management apparatus or not. [Reference numerals] (1) HART communication response device; (11) Reception unit; (12) Signal detection unit; (13) Reception signal judgment unit; (14) Transmission unit; (15) Signal generation unit; (16) Transmission signal determination unit; (17) Indicator unit; (2) HART-IO unit; (3) Device management equipment |
