ABB PM901F
ABB PM901F
ABB PM901F

ABB CI903F 3BDH001010R0002 | PROFIBUS DP Communication Module for Freelance DCS

  • Brand: ABB
  • Model: CI903F 3BDH001010R0002
  • Product Type: PROFIBUS DP Communication Module
  • Series: Freelance DCS
  • Core Function: Facilitates PROFIBUS DP V1 communication between AC 800M controllers and distributed S800 I/O modules.
  • Key Specs: Supports up to 12 Mbps transmission rate; provides integrated diagnostics for bus and device faults.
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Part number: ABB CI903F
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Description

CI903F 3BDH001010R0002: Product Overview
This component serves as a communication interface within ABB’s Freelance Distributed Control System (DCS). Specifically, it is designed to establish a connection between an AC 800M series controller and distributed I/O devices, such as the S800 I/O modules. In this architecture, it acts as a gateway, translating controller commands into PROFIBUS DP protocol signals for the I/O bus, and conversely, converting incoming field data from the I/O modules back into a format the controller can process. It handles the exchange of digital and analog signal information, which is essential for monitoring process variables and controlling field actuators.
The module’s core functionality is to manage data transfer, including cyclic I/O data exchange and acyclic messaging for configuration and diagnostics, over a PROFIBUS DP V1 network. It operates as a slave device on the PROFIBUS network, with the AC 800M controller acting as the master. This arrangement allows for the placement of I/O cabinets closer to the field instrumentation, reducing wiring complexity and cost.
It belongs to the Freelance DCS product family, which is characterized by its integrated engineering environment and scalable, distributed architecture. The benefit of this platform is the unified approach to system configuration, commissioning, and maintenance, which can reduce engineering hours and improve operational consistency across various applications.

ABB PM901F

ABB PM901F

CI903F 3BDH001010R0002: Technical Specifications
  • Model Number: CI903F 3BDH001010R0002
  • Manufacturer: ABB
  • Product Type: PROFIBUS DP Communication Module
  • Protocol Support: PROFIBUS DP V1
  • Transmission Rate: Up to 12 Mbps (configurable)
  • Power Supply: 24 VDC nominal (19.2 to 30 VDC range)
  • Number of Channels: 1 (PROFIBUS DP interface)
  • Connector Type: 9-pin D-sub male
  • Compatibility: AC 800M series controllers; S800 I/O modules
  • Diagnostics: Bus fault detection, device status monitoring
  • Operating Temperature: 0°C to +55°C
  • Storage Temperature: -40°C to +70°C
  • Mounting: Controller rack slot
Core Features & Customer Value
Protocol compliance and performance: The module implements the PROFIBUS DP V1 standard, which is a widely recognized fieldbus protocol in industrial automation. For the engineer, this ensures interoperability with a vast ecosystem of devices and provides a deterministic method for data exchange. The support for transmission rates up to 12 Mbps allows for efficient communication in systems with a high density of I/O points, maintaining fast update times for critical process control loops.
Integration with Freelance system architecture: As a native component of the Freelance DCS, the module is tightly integrated with ABB’s engineering tools. This allows for configuration, commissioning, and diagnostics to be performed within a single software environment. The benefit is a streamlined workflow, reducing the potential for configuration errors and simplifying the training required for maintenance staff.
Diagnostic capabilities: The module provides detailed diagnostics for both the PROFIBUS bus and the connected I/O devices. It can detect issues such as communication interruptions, device faults, and configuration mismatches. For the end user, this means that problems can be identified and localized more quickly, minimizing troubleshooting time and reducing the likelihood of prolonged process interruptions.
Physical robustness: Designed for industrial environments, the module meets relevant electromagnetic compatibility (EMC) standards and operates within a standard temperature range. This ensures reliable performance in the presence of electrical noise from drives and motors, which is common in manufacturing and processing plants.

ABB PM901F

Typical Applications
In a water treatment facility, this module is used to connect an AC 800M controller to remote I/O stations that house analog input modules for pH and turbidity sensors, and digital output modules for chemical dosing pumps. The PROFIBUS DP network allows these I/O stations to be located near the basins, minimizing the distance for sensitive analog signals.
For a manufacturing plant producing consumer goods, the module facilitates communication between the central controller and I/O racks controlling a packaging line. The I/O racks contain modules for proximity sensors, motor starters, and pneumatic valve manifolds. The distributed nature of the system simplifies expansion or modification of the line.
In a power generation setting, the module can be part of a system controlling auxiliary equipment. It connects the controller to I/O modules that monitor bearing temperatures and vibration levels on pumps and fans, and control the operation of lubrication systems, all via a robust PROFIBUS DP link.

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