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The DATX120 is a remote I/O expansion board that provides a mix of digital inputs, digital outputs, and analog I/O for ABB control systems. It is part of ABB's high-performance I/O boards (similar to DATX110) but with extended capabilities, including analog output channels. The DATX120 board offers a comprehensive interface: multiple digital input points and output points for contact signals, plus analog input channels for sensor readings and analog output channels for actuator control. For example, a typical configuration might include 8 digital inputs, 8 digital outputs, 2 analog inputs, and 2 analog outputs (the exact count can vary by system). This board operates on 24 V DC and is designed to mount in the control rack or enclosure of legacy ABB drive/automation systems. With wide signal type support (standard 24 V logic for DIs/DOs, 0–20 mA or 0–10 V for analogs) and onboard signal conditioning, the DATX120 expands the system's ability to interface with field devices. It features screw-terminal or plug connector interfaces for field wiring and includes status LEDs per channel for troubleshooting. By using DATX120 boards, older ABB controllers or drives can accommodate additional sensors and actuators, maintaining high reliability and signal integrity in mission-critical processes.
| Digital Inputs | Yes – supports multiple DI channels (typ. 8) at 24 V DC, current-sinking/sourcing as required (with opto-isolation) |
| Digital Outputs | Yes – supports multiple DO channels (typ. 8) at 24 V DC, transistor or relay type (for solenoids, indicator lamps, etc.) |
| Analog Inputs | Yes – includes analog input channels (e.g. 2 channels, ±10 V or 4–20 mA) for precise measurements (12–16 bit resolution) |
| Analog Outputs | Yes – includes analog output channels (e.g. 2 channels, 0–20 mA or 0–10 V) to drive control signals (e.g. valve position) |
| Operating Voltage | 24 V DC supply (from system backplane or external feed) |
| Mounting | Rack or panel mount in system enclosure (approx. 140 × 130 mm board, weight ~0.15 kg) |
| Operating Temp | 0 °C to +55 °C (typical for cabinet I/O boards) |
| Features | Combined DI/DO and AI/AO on one board for remote/distributed I/O needs; status LEDs for each channel; removable field connectors for serviceability |
| Series Compatibility | Works with ABB legacy controller systems requiring Remote I/O DI+DO+AI+AO; often used in conjunction with DAPU/DAPC control boards |
