ABB 129740-002

ABB 129740-002 is an intelligent analog/digital input/output (I/O) module manufactured by ABB, categorized as a multi-functional industrial control module. It is widely used in PLC, DCS, Warehouse Management Systems (WMS), as well as the drive control of various actuators such as motors and valves. The module enables high-speed, reliable data acquisition and control even in harsh industrial environments.

Key Specifications

• Power Supply: 24 V DC (±20%) or 12–48 V DC, with a power consumption of approximately 20 W
• Inputs: 16 channels of digital inputs, supporting multiple types including voltage (0–30 V DC) and current (0–5 A); optional communication interfaces such as analog, RS-232/RS-485, and Ethernet are available
• Outputs: 16 channels of digital outputs, each channel switchable for a maximum load of 2 A; some models support an output current of 0–5 A
• Communication: RS-232, RS-485, RS-422, Ethernet, etc. Configurable for simplex, half-duplex or full-duplex mode, with a baud rate ranging from 9600 to 115200 bps
• Dimensions/Weight: Approximately 110 mm × 60 mm × 25 mm, weighing 0.6 kg–6.4 kg
• Operating Temperature: -40 °C to +85 °C
• Protection/Reliability: Electrical isolation between inputs and outputs, vibration and shock resistance, compliant with industrial standards such as IEC 60730

Product Features

1. High Reliability: Rigorous quality control, wide temperature tolerance and vibration resistance make it suitable for heavy industrial environments like steel mills, shipyards and paper mills.
2. Multiple Inputs/Outputs: Compatible with voltage, current and digital signals, supporting 16 DI/16 DO to meet complex control requirements.
3. Modular Design: Compact size and low power consumption facilitate plug-and-play installation and on-site maintenance.
4. Diagnosis and Monitoring: Self-diagnosis, event logging and real-time status monitoring functions help achieve rapid fault location.
5. Flexible Communication: Supporting multiple interfaces including RS-232/RS-485, Ethernet and USB, it enables seamless integration with systems such as PLC, DCS and WMS.

Structure and Components

• Power Module: Provides regulated DC power supply with built-in overvoltage and overcurrent protection.
• Input Sub-board: Incorporates analog/current/voltage acquisition circuits equipped with isolation amplifiers.
• Output Sub-board: Adopts relay or MOSFET drive circuits, supporting 2 A load switching.
• Communication Interface Board: Features multiple ports including RS-232, RS-485, Ethernet and USB.
• Control Processor: An embedded microprocessor responsible for signal acquisition, conversion, diagnosis and communication protocol stack operation.
• Housing and Mounting Bracket: The metal or high-strength plastic housing supports DIN rail or screw mounting, facilitating on-site assembly.

Typical Application Fields

• Industrial Automation: On-site I/O expansion for PLC and DCS systems.
• Warehousing and Logistics: Integration with FKI Logistex BOSS systems to realize data acquisition for Warehouse Management Systems (WMS).
• Motor/Valve Drive: Closed-loop control of actuators in mechanical control, process control, packaging, textile and other industries.
• Power Systems: Power quality monitoring and harmonic suppression in power distribution and supply networks.
• Process Industries: High-reliability demand scenarios such as steel, papermaking, shipbuilding and chemical engineering.

Installation and Maintenance Guidelines

Installation

1. Mount the module horizontally using DIN rail or screw fixation.
2. Verify that the power supply voltage range (12–48 V DC) matches the on-site power supply before wiring.
3. Use standard shielded cables for RS-485/RS-232 connections to avoid signal interference.
4. Configure communication parameters (baud rate, parity bit, stop bit) to be consistent with the upper computer.

Commissioning

1. Check the power supply, communication and I/O status via the module’s built-in diagnostic LEDs.
2. Perform channel mapping and parameter configuration using ABB-provided configuration software or standard Modbus/Profibus tools.
3. Conduct input signal simulation (voltage/current) and output load testing to verify response time and load capacity.

Routine Maintenance

1. Regularly inspect the tightness of wiring terminals to prevent signal distortion caused by loose connections.
2. Remove dust from the module surface to keep the heat dissipation channels unobstructed.
3. Use the built-in self-diagnosis function to read event logs and detect abnormalities in advance.
4. If module replacement is required, the plug-and-play hot-swappable design allows for quick replacement after system shutdown, minimizing downtime.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

Global renowned brand cooperation

ABB 丨 GE 丨Allen Bradley  丨  Honeywell 丨   Emerson  丨  Bently Nevada   丨 Westinghouse  

Triconex  丨   Foxboro 丨   ICS Triplex  丨  Hima  丨  Schneider 丨  Yokogawa  丨 Woodward

—————————————————————————————