Description
ABB 500TRM02 1MRB150011R1
ABB Freelance or AC 800F distributed control system (DCS) digital input/output (I/O) terminal module
1. Main Functions
This is a 16-channel digital input (DI) module. Specifically:
Number of channels: 16 independent input channels.
Signal Type: Processes dry or wet contact digital signals.
Dry contact: Passive signals such as relay contacts and switch buttons.
Wet contact: Active signals from an external power supply (such as 24V DC).
Electrical Isolation: Optical isolation is typically provided between channels and between channels and the system. This effectively prevents damage to the control system from ground loops, noise interference, and high-voltage surges, thereby improving system stability and safety.
2. Operating Principle
Field Connection: Field devices such as switches, sensors, and relay contacts are connected to the module’s terminal block.
Signal Acquisition: The module continuously scans the status of each input channel (open or closed, 0 or 1).
Data Processing: The module processes and digitizes the acquired raw digital signals.
Communication Transmission: Data is transmitted to a compatible communication module (e.g., CI851 or CI854) via an internal bus.
Upload to Controller: The communication module then transmits all I/O data to a remote central controller (AC 800F) via a fieldbus (e.g., Profibus DP, Foundation Fieldbus, or Ethernet).
Control Output: After processing the input signals according to the logic program, the controller sends commands to other output modules (e.g., DOM02), ultimately driving actuato
3. Technical Features
High Density: 16 channels are provided on a single module, saving installation space and costs.
Hot-Swap: Installation and removal are supported while the system is running (subject to specific safety requirements), greatly facilitating system maintenance and expansion, and reducing downtime.
Rugged: Designed for harsh industrial environments, it offers high resistance to electromagnetic interference (EMI), vibration, and shock.
LED Status Indicator: Each channel typically features an LED indicator that visually displays the real-time status of the input point (active or inactive), facilitating on-site commissioning and troubleshooting.
4. Typical Applications
This module is widely used in industrial automation applications requiring extensive digital status monitoring, such as:
Process industries: oil and gas, chemicals, pharmaceuticals, and water treatment.
Monitoring valve limit switch status (open/closed).
Detecting pump run/stop status.
Receive alarm signals from emergency stop buttons, pressure switches, and liquid level switches.
Manufacturing industries: automotive, food and beverage, and packaging.
Detecting product arrival signals on production lines.
Reading safety door lock status.
Receive commands from buttons and selector switches.
5. System Components
This module cannot operate independently and must be used in conjunction with the following components:
Base unit: such as the TU810 or TU830. It provides physical mounting for the module, field wiring terminals, and internal bus connections.
Communication interface module: such as the CI851 (Profibus DP), CI854 (Foundation Fieldbus H1), or CI855 (Ethernet). It manages the entire I/O station and communicates with other systems.
Power supply module: Provides power to the entire I/O station.
Central controller: such as the ABB AC 800F or Freelance controller.
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Company Name: ABB Ltd
Headquarters: Zurich, Switzerland
Established in 1988 (formed by the merger of ASEA from Sweden and BBC Brown Boveri from Switzerland)
Business scope: Electrification, Automation, Robotics and Discrete Automation, Motion Control
Operating scope: Over 100 countries worldwide
n 1988, ASEA from Sweden merged with BBC Brown Boveri from Switzerland to form ABB, which became one of the largest engineering groups in the world at the time. This merger is a milestone cross-border merger in the history of European industry.
Growth and Expansion: Throughout the 1990s and early 21st century, ABB rapidly expanded its global business and product portfolio through a series of acquisitions and internal growth
Main business sectors：
Electrification business
Process Automation
Motion Control Business
Robotics&Discrete Automation Business
China market: China is ABB’s second largest market globally and holds an extremely important strategic position. ABB has achieved a comprehensive layout in China, including:
R&D: We have a globally leading R&D center.
Manufacturing: Multiple modern factories located throughout the country (such as Xiamen, Beijing, Shanghai, etc.).
Sales and Service: Our extensive sales and service network covers all parts of the country
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