The ABB P8403 is a digital input module designed for the Plantguard series PLC systems, used in industrial automation to collect digital signals. These signals include switch signals and pulse signals, which are transmitted to the PLC for processing and control.
The ABB P8403 module features a rectangular structure with dimensions of 245 mm (width) × 483 mm (height) × 35 mm (depth). Multiple mounting holes with a diameter of 13 mm are located on the top and bottom for securing or connecting to other devices. Additionally, connection terminals are installed on the sides and bottom for easy integration with other equipment or circuits.
The ABB P8403 is primarily used in industrial automation, particularly in scenarios requiring digital signal acquisition and processing. Examples include:

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