PLCs, Power Supplies & Others

Product Overview

The Schneider DAU 208 analog output module provides eight isolated current or voltage channels for precise actuator control. This field-proven unit integrates smoothly with Momentum and Quantum automation platforms. It converts digital setpoints from the controller into continuous analog signals. Process engineers rely on this module for valve positioning and variable speed drive regulation.

Output Channel Configuration

Each of the eight channels offers software-selectable output ranges. You can choose between 0–20 mA, 4–20 mA, or 0–10 V DC per channel. The module provides 12-bit resolution across all output ranges. This resolution translates to 4,096 discrete steps for fine-grained analog control. Each channel includes individual ground reference to eliminate loop interference.

Electrical Specifications and Load Driving

The Schneider DAU 208 delivers 20 mA maximum current at 24 V DC supply. It drives loads up to 600 ohms in current mode without external amplifiers. The voltage outputs supply 10 V at 5 milliamperes into high-impedance loads. Each channel features short-circuit protection and overcurrent limiting circuitry. These safeguards prevent damage during accidental wiring faults.

Accuracy and Calibration Performance

The module maintains ±0.1% full-scale accuracy at 25°C ambient temperature. Its thermal drift remains within ±50 parts per million per degree Celsius. Factory calibration eliminates the need for manual potentiometer adjustments. Automatic self-calibration occurs during every power-on sequence. This feature ensures consistent performance across extended operation periods.

Communication and Backplane Interface

This output module interfaces with the proprietary Momentum bus backplane. It exchanges data with the CPU using a high-speed parallel protocol. The unit supports hot-swap replacement without powering down the system. Configuration software automatically detects the module upon insertion. This plug-and-play capability minimizes production downtime significantly.

Physical Dimensions and Mounting

The module measures 125 millimeters wide by 70 millimeters high. Its depth reaches 90 millimeters including the front connector block. The unit weighs 0.45 kilograms for lightweight panel installation. It mounts directly onto a standard DIN rail using the integrated clip. A removable terminal block simplifies field wiring and maintenance tasks.

Power Consumption and Energy Efficiency

The Schneider DAU 208 draws 200 milliamperes from the 5 V DC backplane supply. It additionally requires 100 milliamperes from an external 24 V DC source. Total power dissipation stays under 5 watts at full output load. This low consumption reduces heat buildup inside crowded control cabinets. The module uses solid-state output stages for minimal energy waste.

Diagnostic and Status Monitoring

Eight green LEDs indicate individual channel operational status clearly. A single red LED signals any system fault or communication error. The module reports open-wire detection for current output channels. It also monitors output load impedance against programmed limits. These diagnostics enable rapid troubleshooting without specialized test equipment.

Environmental and Operating Conditions

The unit operates between 0°C and 60°C ambient air temperature. It withstands humidity ranging from 10% to 90% non-condensing. The module meets IEC 61000-6-2 immunity standards for industrial environments. Its housing provides IP20 protection from accidental contact. The design excludes any user-serviceable internal components.

Technical Specifications Table

Details