ABB 63938742 Analog Input Module

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Product Overview

The ABB 63938742 is an industrial Analog Input Module designed to acquire analog signals from field sensors (e.g., voltage, current, temperature, pressure, flow) and convert them into digital signals for PLC/DCS control systems. It enables precise process monitoring and closed-loop control, featuring high accuracy, fast sampling, and strong interference immunity, suitable for various industrial applications.

Technical Specifications

• Model: 63938742

• Type: Analog Input Module

• Number of Channels: 8 channels (typical)

• Input Types: 0–20 mA / 4–20 mA / 0–10 V (selectable)

• Resolution: 16-bit

• Sampling Rate: 5 ms per channel (typical)

• Accuracy: ±0.1 % FS

• Isolation Voltage: 500 V DC (input to system)

• Supply Voltage: 24 V DC

• Operating Temperature: –20 °C … +60 °C

• Mounting: DIN rail or modular slot installation

• Communication Interface: Compatible with ABB PLC/DCS bus

• Indicators: LED per channel for status indication

• Protection Rating: IP20

• Dimensions (W×H×D): approx. 90 × 100 × 60 mm

• Weight: approx. 0.25 kg

• Certifications: IEC/EN 61131-2 industrial control standards

Advantages and Features

1. Multi-Channel Input
   Supports simultaneous acquisition of multiple analog signals for centralized monitoring.

2. High Accuracy and Fast Sampling
   16-bit resolution and fast sampling ensure precise measurement of process variables.

3. Isolation Design
   Input-to-system isolation prevents interference and improves system safety.

4. Clear Status Indicators
   LED indicators show the status of each channel, facilitating maintenance and troubleshooting.

5. High Compatibility
   Fully compatible with ABB PLC/DCS systems for seamless integration.

6. Industrial Environment Tolerance
   Operates reliably in –20 °C to +60 °C industrial environments.

Typical Applications

• Industrial process automation and control

• Chemical, pharmaceutical, food & beverage production monitoring

• Water treatment and energy management systems

• Acquisition of flow, temperature, and pressure sensor data

• PLC/DCS system integration and closed-loop control

Precautions

1. Ensure input signal type (mA/V) matches module configuration before installation.

2. Follow wiring instructions strictly to guarantee reliable signal acquisition.

3. Avoid high temperature, humidity, and strong electromagnetic interference.

4. Regularly check LED status and acquired data to ensure stable operation.

5. Do not disassemble or modify the module to avoid affecting accuracy and safety.