GE IC697ALG441 Analog Input Voltage Expansion Module

1. Signal Acquisition

• Voltage Signals: Unipolar/Bipolar Voltage (up to ±10V)
• Current Signals: 4-20mA Current Loop (requires external circuit support)

2. Signal Conditioning

• Filtering: Each channel features a built-in low-pass filter (cutoff frequency: 100 radians/second, approx. 0.01 seconds) to suppress high-frequency noise (e.g., electromagnetic interference) and ensure signal stability.
• Electrical Protection: Input channels are protected against transient and steady-state overvoltage conditions to prevent module damage.

3. A/D Conversion (Analog-to-Digital Conversion)

4. Data Transmission & Processing

5. Auxiliary Functions

• Auto-Calibration: The module continuously self-calibrates zero and full-scale values, eliminating the need for manual calibration and reducing maintenance costs.
• Expansion Capability: Works in conjunction with a base converter module (e.g., IC697ALG230) and supports up to 7 daisy-chained modules, expanding total input channels to 120 for large-scale applications.

Functional Features

• Channel Count: 16 input channels for versatile analog signal acquisition.
• Input Range: Accepts unipolar/bipolar voltages (up to ±10V) and 4-20mA current signals, compatible with various sensors.
• Resolution: Base converter offers 14-bit resolution (1/16384), enhanced by oversampling for higher precision.
• Data Format: Two’s complement (sign + 15 bits) stored in 16-bit (%AI) memory per channel.
• Expansion: Up to 7 modules can be cascaded with a base converter, supporting up to 120 input channels.
• Configuration: Software-configurable via MS-DOS or Windows programming tools (no jumpers/DIP switches required).
• Self-Calibration: Automatic zero and full-scale calibration reduces maintenance workload.
• Electrical Protection: Guards against voltage transients to enhance reliability.
• Filtering: Low-pass filter (100 rad/s) with an additional digital filter pole at 450 rad/s for noise reduction.

Application Areas

1. Manufacturing

• Automotive & Electronics: Monitors temperature (e.g., welding equipment), pressure (hydraulic systems), and 液位 (coolant tanks) to ensure stable production parameters and prevent quality issues or downtime.
• Robotics: Acquires position and velocity analog signals for precise motion control of robotic arms.

2. Energy & Power

• Power Plants/Substations: Monitors oil pressure, coolant temperature, and steam pressure in generators; PLC adjusts parameters in real-time to prevent failures and ensure grid stability.
• Renewable Energy: Collects voltage/current data from solar inverters and wind converters for process optimization.

3. Process Control

• Water Treatment: Measures pH, turbidity, and dissolved oxygen; PLC controls dosing pumps and mixers to meet water quality standards.
• Chemical Industry: Precise monitoring of reactor temperature, pressure, and flow to maintain safe and efficient chemical processes.

4. Metallurgy & Materials Processing

• Steel/Aluminum Production: Regulates furnace temperature and rolling mill pressure to ensure consistent material properties.

5. Food & Pharmaceutical

• Food Processing: Monitors sterilization temperature and fermentation tank pressure to comply with safety standards.
• Pharmaceuticals: Controls liquid concentration and cleanroom environmental parameters (temperature/humidity) for product quality assurance.