Product Description

The Mitsubishi A1SX42-S1 is a 64-point digital input module designed for the MELSEC A Series PLCs. This module utilizes a sinking configuration with photocoupler isolation, ensuring reliable signal processing in industrial automation systems. It operates at a rated input voltage of 24 VDC and is capable of handling up to 50% of its input points simultaneously in the ON state. With a compact design, the A1SX42-S1 is suitable for various control applications requiring efficient and precise input handling.​

Technical Specifications

• Model: A1SX42-S1
• Series: MELSEC A Series
• Input Points: 64
• Input Configuration: Sinking (Negative Logic)
• Isolation Method: Photocoupler
• Rated Input Voltage: 24 VDC
• Rated Input Current: 5 mA
• Operating Voltage Range: 19.2 to 26.4 VDC (with less than 5% ripple)
• Maximum Simultaneous ON Inputs: Up to 50% of input points
• ON Voltage: 18.5 VDC or higher
• ON Current: 3.5 mA or higher
• OFF Voltage: 3 VDC or lower
• OFF Current: 1.7 mA or lower
• Input Resistance: Approximately 4.7 kΩ
• Response Time (OFF to ON): 10 ms or less
• Response Time (ON to OFF): 10 ms or less
• Operating Indicator: LED indicator for operation status
• Connector Type: 40-pin connector for external connections
• Module Power Supply: 5 VDC
• Current Consumption at 5 VDC: 0.09 A
• Dimensions: 130 mm (H) × 34.5 mm (W) × 93.6 mm (D)
• Weight: 0.28 kg
• Mounting Orientation: Vertical
• Operating Temperature Range: 0°C to 55°C
• Storage Temperature Range: -20°C to 75°C
• Certifications: CE, UL​
• Classic Automation
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