ABB CHBX01L 2VAA008574R1

Description

Product Description

The ABB CHBX01L 2VAA008574R1 is a critical communication and power distribution module, specifically a ComHub, designed for ABB’s modular S500 I/O station used with the AC 500 and AC 500-eCo PLC families. This device serves as the central nervous system of a local I/O cluster, managing communication between the PLC’s CPU and all connected I/O modules, while simultaneously distributing power from the central supply. The primary role of the ABB CHBX01L 2VAA008574R1 is to provide a reliable data highway and a stabilized power bus, ensuring all modules in the station can communicate and operate correctly. This specific model includes an integrated power supply input for 24V DC, eliminating the need for a separate supply module in smaller configurations. Implementing the ABB CHBX01L 2VAA008574R1 is fundamental to building a functional and expandable I/O station, as it dictates the maximum number of modules and the types of communication protocols supported. For system integrators using the AC 500 platform, selecting the correct ComHub, such as the ABB CHBX01L 2VAA008574R1, is the essential first step in any hardware configuration.

Product Parameters

• Product Type: ComHub (Communication and Power Hub) for S500 I/O Station.
• Compatibility: Designed for the ABB AC 500 and AC 500-eCo series of PLCs.
• Communication Interface: Typically features a system bus connection (to the CPU or upstream hub) and a local bus for connecting I/O modules. Specific protocols (e.g., PROFIBUS DP, CANopen) are defined by the model variant.
• Integrated Power Supply: Includes a 24V DC input for powering the ComHub itself and distributing power to the connected I/O modules via the backplane.
• Power Output: Provides a stabilized 5V DC for the internal electronics and a 24V DC field supply for the I/O modules, with a specified maximum current rating (e.g., 10A on the 24V DC bus).
• Expansion Capacity: Determines the maximum number of I/O modules that can be mounted to its right in the S500 station (e.g., up to 8 modules).
• Mounting: Mounts on a standard DIN rail as the left-most component of an S500 I/O station.
• Status Indication: Features LEDs for system status, communication activity, and power (24V DC IN, 24V DC OUT, 5V DC).
• Order Number: 2VAA008574R1 is the specific article code for this ComHub variant.

Advantages and Features

• Integrated Power Design: The built-in 24V DC power input simplifies cabinet design and reduces component count for compact stations, lowering overall cost and wiring complexity.
• Centralized Control and Diagnostics: As the master of the local I/O station, the ABB CHBX01L 2VAA008574R1 provides centralized status and diagnostic information for the entire cluster, making troubleshooting faster and more efficient.
• Modular and Scalable: Forms the foundation of a highly modular I/O system. Users can start with a small configuration and expand by adding modules up to the hub’s capacity without changing the core communication unit.
• Robust and Reliable: Engineered for industrial environments, it provides stable power conditioning and secure data communication, which are critical for the reliable operation of all connected I/O modules.
• Simplified Configuration: Recognized automatically by ABB’s Automation Builder engineering software, which simplifies hardware configuration and ensures parameter consistency.

Application Cases in Application Fields

• Packaging Machine: Serves as the local I/O hub in a machine control panel, connecting digital and analog modules that interface with sensors, drives, and actuators on a high-speed filler and capper.
• Water Pumping Station: Acts as the central I/O station for a remote AC 500 PLC, collecting level switch inputs and controlling pump contactors and valve actuators for an automatic pump sequencing system.
• Factory Conveyor System: Used as a distributed I/O drop along a conveyor line, linked via PROFIBUS DP to a central controller, handling photo-eye sensors and motor starter commands for that section.
• Small Batch Reactor: Forms the core I/O interface for a compact AC 500-eCo controller, managing temperature sensor inputs (via analog module) and outputs to heating element contactors and solenoid valves.

Comparisons with Competing Products

Competing products include remote I/O heads or communication adapters from other PLC manufacturers, such as the Siemens ET 200SP Interface Module or the Schneider Electric Modicon TM5 Power Distribution Module. The ABB CHBX01L 2VAA008574R1 is distinguished by its tight integration and optimization for the ABB AC 500 ecosystem. Unlike a simple communication coupler, it combines communication routing, power distribution, and conditioning in one device. Compared to a basic power supply and separate communication module setup, this ComHub offers a cleaner, more integrated solution. Its primary advantage is delivering a pre-engineered, reliable, and software-managed foundation for the S500 I/O system. For users of ABB’s mid-range PLCs, the ABB CHBX01L 2VAA008574R1 is the specified and supported component to build upon, ensuring compatibility and performance.

Selection Suggestions and Precautions

1. CPU and Protocol Compatibility: Verify that your AC 500 CPU supports the communication protocol (e.g., PROFIBUS DP-Slave, CANopen) of this specific ComHub variant. The model suffix (e.g., ‘L’ may indicate a specific bus type) is critical.
2. Power Budget Calculation: Before populating the station with I/O modules, calculate the total 5V DC and 24V DC current consumption of all modules. The total must not exceed the ABB CHBX01L 2VAA008574R1‘s rated output capacity. Exceeding it will cause unstable operation or shutdown.
3. External Power Supply Rating: The external 24V DC power source connected to the ComHub’s input must be adequately sized to supply the hub’s own needs plus the total current for all connected I/O modules and their field devices.
4. Correct Station Assembly: This ComHub must always be installed as the left-most (number 1) unit in the S500 station. Modules are then added to its right. Incorrect physical order will prevent communication.
5. Firmware Compatibility: Ensure the firmware version of the ABB CHBX01L 2VAA008574R1 is compatible with the version of Automation Builder software and the CPU firmware being used to avoid configuration or communication issues.

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