F8621A

 F8621A

 F8621A

The elevator electrical control using PLC as the intermediate process control. After the circuit schematic diagram and installation wiring diagram design is completed, the PLC ladder diagram program corresponding to the circuit schematic diagram is also designed and drawn. The ladder diagram program is the logic control diagram of various soft and hard relays in the PLC. Its logic control method is similar to the logic control circuit diagram between the intermediate process control relays. Therefore, it is one of the important links in the design of the PLC control electrical system. When designing a ladder diagram program, you should follow the PLC user manual method to understand the PLC's !/0 interface allocation, combination arrangement and code of the PLC, various soft relays, data areas, channel codes in the machine, and the compilation rules and codes of common instructions. The following rules should generally be followed when designing ladder diagrams: (1) The normally open and normally closed contacts of point 1/0 and various internal soft relays can be reused multiple times. (2) The coil of the soft relay cannot be directly connected to the busbar on the left, and there should be a transition point. (3) There can be no contact on the right side of the soft relay. (4) In a set of ladder diagrams, coils with the same code cannot appear repeatedly. (Using SET and RST commands) (5) The input and output points of the PLC can be used as a soft relay.

The HIMA F8621A digital input module is typically used in the following industrial fields and application scenarios to monitor and collect digital input signals, and trigger corresponding control and safety operations when needed:

Industrial automation: The F8621A module is widely used in industrial automation systems to monitor equipment status, sensor status, and actuator position feedback. This helps to ensure the normal operation of the system and achieve automated control.

Process control: In fields such as chemical engineering, petroleum and natural gas, pharmaceuticals, etc., the HIMA F8621A digital input module can be used to monitor the switch status and sensor status in the process to ensure the safety and reliability of the production process.

Power industry: HIMA F8621A digital input module can be used in power plants and distribution stations to monitor switchgear, battery status, voltage status, etc. This is crucial for the stability and safety of the power system.