A1S68AD 8-Channel Analog Input Module -10 to +10V / 0-20mA | Mitsubishi Electric

The Original New Mitsubishi Electric A1S68AD is an 8-channel analog input module for the MELSEC-A series programmable controllers. It accepts voltage (-10 to +10 V DC) and current (0 to +20 mA DC) signals, converting them to 16-bit signed binary digital values for precise process monitoring and control. The module features a maximum conversion speed of 0.5 ms per channel and achieves ±1% full-scale accuracy. It connects via a 20-point screw terminal block and occupies 32 I/O points on the rack. This module is designed for integration with AnS and QnAS series CPU systems, making it a reliable solution for industrial automation applications requiring multi-channel analog signal acquisition.

Core Engineering Highlights:
8 analog input channels (voltage or current) | Voltage: -10 to +10 V DC (input resistance 1 MΩ) | Current: 0 to +20 mA DC (input resistance 250 Ω) | 16-bit signed binary digital output | 0.5 ms/channel conversion speed | ±1% full-scale accuracy | 32 occupied I/O points | 20-point screw terminal block | 0.40 A @ 5 V DC current consumption | 0.27 kg

Key Features:

• Original New Mitsubishi Electric A1S68AD module

• 8 analog input channels for voltage or current signals

• Voltage input range: -10 to 0 to +10 V DC

• Current input range: 0 to +20 mA DC

• 16-bit signed binary digital output (-2000 to +2000 for ±10 V, 0 to +4000 for 0-10 V / 0-20 mA)

• Maximum resolution: 2.5 mV (0-10 V), 5 mV (±10 V), 1.25 mV (0-5 V), 1 mV (1-5 V), 5 μA (0-20 mA), 4 μA (4-20 mA)

• Maximum conversion speed: 0.5 ms per channel

• Overall accuracy: Within ±1% at full scale (digital output value: ±40)

• Absolute maximum input: Voltage ±35 V, Current ±30 mA

• Photocoupler insulation between input terminals and PLC power supply (channels not insulated from each other)

• 20-point screw terminal block for field wiring

• Applicable wire size: 0.75 to 1.5 mm²

• Occupies 32 I/O points on the rack

• Compact dimensions and lightweight design (0.27 kg)

Applications:

• Process variable monitoring (pressure, flow, level, temperature)

• Machine automation and data acquisition

• Analog signal conversion for sensors and transmitters

• Factory automation and process control systems

• Industrial applications requiring multi-channel analog input

Technical Specifications:

System Compatibility:

• Compatible with Mitsubishi Electric MELSEC-A series programmable controllers. Module compatibility should be verified before installation.

• Technical compatibility with QnAS CPU and AnS CPU systems

• Recommended replacement for migration: L60ADVL8 (voltage) or L60ADIL8 (current) for MELSEC-L series

Related Products:

• A1S64AD – 4-channel analog input module

• A1S68DAV – 8-channel analog output module (voltage)

• A1S68DAI – 8-channel analog output module (current)

• Q68ADV – 8-channel analog input module for MELSEC-Q series (migration path)

• L60ADVL8 – 8-channel analog input module for MELSEC-L series (recommended replacement)

• L60ADIL8 – 8-channel analog input module for MELSEC-L series (current input)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Mitsubishi Electric and MELSEC are trademarks of Mitsubishi Electric Corporation.