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AEG AS-B873-001 Modicon 8-Channel Analog Input Module
- Product Introduction: This is an 8-channel universal analog input module for AEG Modicon 800 series PLC systems, designed to measure temperature via thermocouples (Type J/K/T/E/R/S/B/N) and RTDs (PT100/PT1000). It features 16-bit resolution, cold junction compensation, and channel isolation to convert temperature signals into digital data for the PLC CPU. It is optimized for industrial temperature monitoring in processes where precise thermal control is critical, such as chemical reactors, furnaces, and material processing lines.
- Technical Specifications:
- Input Channels: 8 independent channels, each configurable for thermocouple (J/K/T/E/R/S/B/N) or RTD (PT100/PT1000, 2/3/4-wire) inputs.
- Resolution: 16-bit (65536 discrete values) for all input types, ensuring fine temperature measurement.
- Thermocouple Range: -200°C to +1800°C (model-dependent), with cold junction compensation (CJC) accuracy ±0.5°C.
- RTD Range: -200°C to +850°C (PT100), -50°C to +200°C (PT1000), 3-wire configuration to eliminate lead resistance error.
- Accuracy: ±0.1°C at 0°C (PT100), ±0.2% FS for thermocouples, ±0.1% FS over -25°C to +70°C.
Detailed content
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- Isolation: 2500 VAC between channels and backplane, 1500 VAC between channels.
- Common Mode Rejection Ratio (CMRR): ≥120 dB; Normal Mode Rejection Ratio (NMRR): ≥80 dB, minimizing industrial noise interference.
- Power Supply: 24 VDC from PLC backplane, power consumption ≤3 W.
- Operating Temperature: -25°C to +70°C; Storage Temperature: -40°C to +85°C; Protection Rating: IP20.
- Dimensions: 80mm × 160mm × 50mm (W×H×D); Mounting: 35mm DIN rail (Modicon 800 series chassis slot).
- LED Indicators: Power (green), channel status (yellow per channel), fault (red), CJC status (blue).
- Compatibility: Modicon 800 series PLCs, IEC 61131-3 programming support.
- Functional Features:
- 8 universal channels support thermocouples and RTDs, eliminating the need for separate temperature input modules and reducing system cost.
- 16-bit resolution and high accuracy (±0.1°C for PT100) provide precise temperature data, enabling tight process control and consistent product quality.
- Cold junction compensation for thermocouples ensures accurate measurements without manual adjustment, even in varying ambient temperatures.
- Channel isolation at 2500 VAC/1500 VAC prevents ground loops and electrical interference, critical for reliable temperature monitoring in noisy industrial environments.
- High CMRR/NMRR (≥120 dB/≥80 dB) rejects electromagnetic noise from motors, VFDs, and power lines, ensuring signal integrity.
- 3-wire RTD support eliminates lead resistance error, ideal for long cable runs in large industrial facilities.
- Fast sampling rate (10 samples/s per channel) captures dynamic temperature changes in processes like batch heating and cooling cycles.
- Plug-and-play integration with Modicon 800 series PLCs, with channel configuration (type, range, filter) via programming software.
- LED indicators for power, channel activity, faults, and CJC status enable quick troubleshooting of sensor or wiring issues.
- Wide operating temperature range and industrial-grade components ensure reliable performance in extreme environments, with an MTBF of over 200,000 hours.
- Application Scenarios: Used in industrial temperature monitoring systems for metallurgy, chemical processing, oil and gas, and semiconductor manufacturing. It measures temperature in furnace chambers, reactor vessels, heat exchangers, and material drying lines. Suitable for any industrial application requiring Modicon PLCs to monitor temperature via thermocouples/RTDs with high precision and reliability.
