HONEYWELL 51195096-100 PLC Input/Output Board

Working Principle:

• Input Principle: The input port receives signals from external devices or sensors, which can be digital or analog signals. Digital input signals, usually from switches, buttons, etc., are converted into standard digital signals through isolation circuits such as optocouplers for CPU processing. Analog input signals such as temperature and pressure are first converted into standard analog signals by transmitters, then converted into digital signals via A/D converters and transmitted to the CPU.
• Output Principle: The output port converts the logical operation results of the CPU into signals executable by external devices. Digital output signals are used to control the on-off of devices such as relays and solenoid valves, and directly control external devices after conversion by internal circuits. Analog output signals are converted into standard analog signals (such as 4-20mA DC current signals or 1-10V DC voltage signals) through D/A converters to further control the operation of external devices.

Functional Characteristics:

• Strong Signal Processing Capability: It can process multiple types of signals and connect multiple input or output devices simultaneously. Equipped with advanced signal processing technology, it can isolate and filter input signals, improving the anti-interference ability of signals and ensuring accurate collection of external signals.
• Scalability and Flexibility: As a modular component, it can be used with other modules (such as CPU modules, power modules, etc.) to form a complete PLC system. It can flexibly configure I/O points and types according to different application requirements, adapting to various industrial control scenarios.
• High Reliability: It usually adopts high-quality components and robust design, and can work stably under extreme temperature conditions such as -40℃ to +70℃, adapting to harsh industrial environments. Some models may also have self-diagnosis functions, which can monitor their own working status in real-time, detect faults in a timely manner and alarm, reducing system downtime.

Application Fields:

• Manufacturing Industry: It is used for controlling equipment such as injection molding machines, printing machines, and combined machine tools. It realizes switching value logic control and sequence control, which can replace traditional relay circuits, improving production efficiency and equipment stability.
• Process Industry: In industries such as metallurgy, chemical industry, and electric power, it is used for closed-loop control of analog quantities such as temperature, pressure, flow, and liquid level. By connecting with various sensors and actuators, it realizes precise control of the production process, ensuring stable operation of the production process and stable product quality.
• Building Automation: It can be used in building lighting systems, air conditioning systems, elevator control systems, etc., to realize automatic control of various equipment in buildings, improving the energy utilization efficiency and management convenience of buildings.
• Water Treatment Industry: It is used in sewage treatment plants or water supply systems to control the start-stop of water pumps and the opening and closing of valves, monitor parameters such as water level and water quality, and realize automatic operation and management of the water treatment process.