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A1S64AD

The Mitsubishi A1S64AD is a 4-channel analog input module designed for the MELSEC-A Series PLCs, enabling precise measurement and monitoring of analog signals in industrial automation applications. It supports multiple input types, including voltage and current signals, making it suitable for various process control and data acquisition tasks.

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Key Features
1. Multi-Channel Analog Input
4 isolated input channels (non-isolated between channels)

Input types:

Voltage: -10V to +10V DC (1MΩ input impedance)

Current: 4-20mA / 0-20mA (250Ω input impedance)

2. High Resolution & Accuracy
16-bit resolution (65,536 steps)

Accuracy: ±0.1% of full scale (voltage), ±0.2% of full scale (current)

Conversion speed: 10ms/channel (all channels)

3. Flexible Configuration
DIP switch settings for selecting input types (voltage/current)

Scaling function for direct engineering unit conversion (e.g., °C, MPa)

4. Robust Design
Optical isolation between PLC and analog inputs

Built-in diagnostics for input errors (open-circuit detection for current inputs)

Wide operating temperature: 0°C to 55°C

5. Compatibility
Compatible with MELSEC-A Series PLCs (e.g., A1S, A2S, A3A CPUs)

Mounts on A Series base units (e.g., A1S35B, A1S38B)

Technical Specifications
Parameter Specification
Input Channels 4 (voltage or current)
Voltage Range -10V to +10V DC
Current Range 4-20mA / 0-20mA
Resolution 16-bit (1/65,536)
Accuracy ±0.1% (voltage), ±0.2% (current)
Conversion Speed 10ms per channel (all channels: 40ms max)
Isolation Photocoupler (PLC side)
Power Consumption 5V DC (150mA max)