Mitsubishi A616AD Melsec Programmable Logic Controller Analog Input Module A616AD

Description:

The Mitsubishi A616AD is an analog input (A/D converter) module for the MELSEC-A series PLC platform, designed to convert analog signals into digital data for processing by the PLC. Commonly installed in industrial automation systems, process control environments, and manufacturing lines, it enables precise monitoring of analog inputs such as voltage and current signals. Maintenance teams, system integrators, and OEMs use this module for system expansion, upgrades, and replacements where accurate data acquisition and control are required.

Applications:

The Mitsubishi A616AD analog input module is used in industrial environments requiring precise measurement and control of analog signals. Typical applications include process control systems, temperature and pressure monitoring, flow measurement, and manufacturing automation where real-time analog data must be converted into digital values for PLC logic processing and system optimization.

Technical Specifications:

• Manufacturer Part Number (MPN): A616AD
• Product Type: PLC Analog Input (A/D Converter) Module
• PLC Platform: Mitsubishi MELSEC-A Series
• Number of Channels: 16 analog inputs
• Input Signal Types:
• Voltage: −10 to +10 V DC
• Current: −20 to +20 mA DC 
• Resolution: Up to 1/4000 (approx. 12-bit class)
• Digital Output Format: 16-bit signed binary data
• Conversion Speed: ~1 ms per channel (sampling)
• Accuracy: Approx. ±0.6% full scale
• Isolation: Photocoupler isolation between input and PLC
• Max Input Limits: 15 V (voltage), 30 mA (current)
• Power Consumption: ~1 A at 5 V DC (from PLC backplane)
• Terminal Type: 38-point terminal block
• Mounting Type: Rack mount (A Series base unit)
• Dimensions: ~37.5 × 250 × 131 mm
• Weight: ~0.65–0.85 kg
• Operating Temperature: 0 °C to 55 °C

Common Replacements:

• Mitsubishi A1S64AD
• Mitsubishi Q64AD
• Siemens SM 331 Analog Input Module