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AEG DAU104 Modicon 4-Channel Digital-to-Analog Conversion Module
- Product Introduction: This is a 4-channel digital-to-analog conversion module designed for AEG Modicon 800 series PLC systems, converting digital control signals from the PLC CPU into precise 4-20 mA current or 0-10 VDC voltage output signals. It features 16-bit resolution, channel isolation, and overload protection, ensuring accurate and stable signal transmission to field actuators, such as control valves, variable frequency drives (VFDs), and positioners. It integrates seamlessly with Modicon PLC backplanes, providing a reliable interface for continuous process parameter control in industrial automation applications.
- Technical Specifications:
- Output Channels: 4 independent channels, each configurable for 4-20 mA DC current or 0-10 VDC voltage output.
- Resolution: 16-bit (65536 discrete values), ensuring fine control of output signals.
- Accuracy: ±0.05% full scale (FS) at 25°C, ±0.1% FS over the operating temperature range (-25°C to +70°C).
- Current Output: 4-20 mA, maximum load resistance 750 Ω, ensuring no signal attenuation over long cable runs.
- Voltage Output: 0-10 VDC, output impedance 10 Ω, maximum load current 20 mA.
- Isolation: 2500 VAC between channels and backplane, 1500 VAC between adjacent channels to prevent cross-interference.
Detailed content
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- Update Rate: ≤1 ms per channel, enabling real-time response to CPU control commands.
- Power Supply: 24 VDC from PLC backplane, power consumption ≤4 W.
- Protection: Overcurrent and short-circuit protection per channel (self-recovering), thermal shutdown at 85°C.
- Operating Temperature: -25°C to +70°C; Storage Temperature: -40°C to +85°C; Protection Rating: IP20.
- Dimensions: 70mm × 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).
- Functional Features:
- 4 universal channels support both current and voltage outputs, eliminating the need for separate modules for different actuator types, reducing system complexity and cost.
- 16-bit resolution and high accuracy (±0.05% FS) ensure precise output signals, critical for applications requiring tight process control, such as chemical dosing and speed regulation.
- Channel isolation at 2500 VAC/1500 VAC blocks ground loops and electrical interference, enhancing signal integrity and system safety in noisy industrial environments.
- Fast update rate (≤1 ms) enables real-time adjustment of outputs to dynamic process changes, such as rapid pressure fluctuations in reactor vessels.
- Overcurrent and short-circuit protection with self-recovery safeguards the module from damage, ensuring continuous operation even during field wiring faults.
- Plug-and-play integration with Modicon 800 series PLCs, with output range, zero, and span calibration configurable via programming software, simplifying system setup and debugging.
- Low power consumption (≤4 W) minimizes backplane power draw, allowing more modules to be installed in a single chassis.
- LED indicators provide instant visual feedback on power, channel activity, and faults, enabling quick troubleshooting of actuator or wiring issues.
- Industrial-grade components and wide operating temperature range ensure reliable performance in harsh environments, with an MTBF of over 200,000 hours.
- Application Scenarios: Used in industrial process control systems for chemical manufacturing, water treatment, oil and gas, and power generation. It drives control valves for flow regulation in pipelines, VFDs for motor speed control in conveyor systems, and positioners for precise mechanical movement in packaging machines. Suitable for any industrial application requiring Modicon PLCs to output 4-20 mA/0-10 VDC analog signals for continuous process parameter adjustment.
