Main performance and features:  

① Bus signal transmission (+24V, GND, S+, S-)  

② 4-way bus interface, capable of connecting 256 devices  

③ 7-inch TFT color LCD display  

④ Chinese input functionality  

⑤ Resistant to RF/EMI interference  

⑥ Two-level alarms: low-limit alarm and high-limit alarm  

⑦ Automatic fault monitoring  

When any of the following conditions occur, the controller emits a distinct sound and light fault signal:  

When there is a short circuit or disconnection fault in the connection line between the controller and the detector;  

When there is a detector fault;  

When there is a main power supply or backup power supply fault.  

⑧ Linked output with configurable linkage output methods and logic  

Four-way linkage output can control four external devices (fans or solenoid valves).  

⑨ Ability to save 999 alarm records and 999 fault records separately  

Query the last 999 alarm and fault records, with information retained even in power failure.  

⑩ Power conversion function  

Main and backup power supply with seamless switching and indicators for the working status of each power supply.  

⑪ RS485 bus interface for communication with the host computer.