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The ABB CI546 (3BSE012545R1) is a mid‑to‑high‑capacity industrial communication interface module designed for robust signal acquisition, conditioning, and transfer within complex automation systems. It serves as a central interface between field‑level instrumentation (analog and digital sensors, meters, switches) and supervisory controllers such as PLCs (Programmable Logic Controllers), DCS (Distributed Control Systems), or industrial automation servers.
This module is engineered for environments where high reliability, accurate data acquisition, and real‑time communication are essential. CI546 combines multiple signal types in one modular device, reducing the need for separate I/O converters and simplifying system architecture. Built for industrial durability, the CI546 supports sustained operation under electrical noise, temperature variation, and mechanical vibration.
Brand: ABB
Product Series: CI Communication Interface Modules
The CI series includes a variety of communication, interface, and distributed I/O modules. These units enable reliable data flow between field devices and higher‑level automation layers. The series serves industries such as manufacturing, energy, water treatment, infrastructure automation, and testing/measurement environments.
The CI546 is designed to aggregate, condition, and communicate both analog and digital signals. It supports mixed I/O configurations, offering flexibility for varied field requirements. The module incorporates electrical isolation and noise suppression to maintain signal fidelity. Built‑in status LEDs provide real‑time feedback on power, communication status, and channel activity, aiding service technicians during commissioning and diagnostics.
CI546 mounts easily on standard DIN rails or in modular racks and integrates into distributed control systems by offering a structured communication pathway. Its scalable architecture allows it to be part of larger automation networks that can expand with demand without redesigning core control logic.
Process Automation Systems
CI546 functions in chemical, petrochemical, and manufacturing plants to collect analog signals (e.g., temperature, pressure, flow) and digital status signals (e.g., limit switches, alarms) for control systems.
Energy Systems and Power Monitoring
The module collects data from power meters, voltage/current transducers, and protective devices used in substations, renewable energy installations, and industrial power distribution.
Machine Control and Factory Automation
CI546 interfaces with sensors and actuators on production equipment, facilitating motion control, safety interlocks, and quality monitoring functions.
Building and Facility Automation
In commercial facilities, CI546 gathers inputs from environmental sensors, water systems, and HVAC controls, integrating them into centralized building management systems.
Laboratory and Test Bench Systems
The module is also applicable in test and measurement setups where multiple analog and digital data channels must be acquired, visualized, and logged.
Versatile I/O Support
CI546 handles a mix of analog and digital inputs and outputs in one module, reducing the quantity of discrete interface devices in a system.
Reliable Communication
The module maintains stable communication with controllers and supervisory systems, ensuring data integrity even in electrically noisy environments.
Industrial‑Grade Durability
Designed to withstand temperature variation, vibration, and electromagnetic interference typical of industrial environments.
Ease of Diagnostics
Front‑panel LED indicators on the module provide immediate visual information on power, communication status, and channel faults.
Modular Scalability
DIN rail or rack mounting allows integration in both small and large automation systems while supporting future expansion without significant rework.
| Specification | Details |
|---|---|
| Model | CI546 (3BSE012545R1) |
| Module Type | Communication Interface and I/O Integration Module |
| Digital Inputs | 24 inputs |
| Digital Outputs | 12 outputs |
| Analog Inputs | 12 analog input channels |
| Analog Outputs | 6 analog output channels |
| Input Signal Types | Voltage: 0–10 V, ±10 V; Current: 0–20 mA, 4–20 mA |
| Output Signal Types | Voltage: 0–10 V; Current: 4–20 mA |
| Resolution | 16‑bit |
| Sampling Time | ~20 – 30 ms per channel |
| Communication Protocols | Standard industrial interface protocols |
| Power Consumption | 12 W |
| Operating Temperature | –20 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Isolation | Channel‑to‑system isolation |
| Dimensions (H×W×D) | 140 mm × 220 mm × 75 mm |
| Weight (kg) | 2.20 kg |
| Mounting Method | DIN rail / Modular rack |
| Status Indicators | Power, communication, channel status LEDs |
| Model | Digital Inputs | Digital Outputs | Analog Inputs | Analog Outputs | Power (W) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| CI501 | 8 | 4 | 4 | 2 | 6.0 | 100 × 140 × 55 | 1.10 |
| CI502 | 12 | 6 | 6 | 3 | 8.0 | 120 × 160 × 60 | 1.25 |
| CI525 | 16 | 8 | 8 | 4 | 9.0 | 120 × 180 × 60 | 1.55 |
| CI530 | 24 | 12 | 12 | 6 | 11.0 | 160 × 200 × 75 | 2.15 |
| CI543 | 16 | 8 | 12 | 6 | 10.0 | 140 × 180 × 70 | 1.90 |
| Model | Function | Channels/Outputs | Resolution/Type | Power (W) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| DI810 | Digital Input Module | 16 digital inputs | Digital | 2.0 | 90 × 120 × 25 | 0.32 |
| DO810 | Digital Output Module | 16 digital outputs | Digital | 2.0 | 90 × 120 × 25 | 0.33 |
| AI820 | Analog Input Module | 12 analog inputs | 16‑bit | 3.0 | 90 × 120 × 40 | 0.50 |
| AO820 | Analog Output Module | 12 analog outputs | 16‑bit | 3.0 | 90 × 120 × 40 | 0.50 |
| BCU‑12 | Control/Interface Module | Multi I/O | Digital/Analog | 10.0 | 140 × 180 × 70 | 2.10 |
Q1: What is the primary role of the CI546 module?
A1: The CI546 is a communication interface and I/O integration module that connects analog and digital field signals to automation control systems.
Q2: How many digital inputs does CI546 support?
A2: It supports 24 digital input channels.
Q3: How many analog output channels are available?
A3: The module provides 6 analog output channels.
Q4: What resolution does the CI546 use for analog I/O?
A4: CI546 uses 16‑bit resolution for precise signal processing.
Q5: What types of signals can the CI546 handle?
A5: It accepts industrial standard voltage signals (0–10 V, ±10 V) and current signals (0–20 mA, 4–20 mA).
Q6: What is the operating temperature range for CI546?
A6: The operating range is –20 °C to +60 °C.
Q7: What are the physical dimensions of CI546?
A7: The dimensions are approximately 140 mm × 220 mm × 75 mm.
Q8: How much does the CI546 weigh?
A8: The module weighs about 2.20 kg.
Q9: Does CI546 offer diagnostics?
A9: Yes, it includes LED indicators for power, communication, and channel status.
Q10: Can CI546 be expanded into larger industrial systems?
A10: Yes, CI546 is modular and integrates with other communication modules for larger automation setups.