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- 130 × 50 × 105 mm
- 0.94kg
- 3DDE300403/3DDE 300 403
- Xiamen, China
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Product Technical Profile – ABB CMA123 / CMA 123 (3DDE300403)
1) Brand and Series Overview
Brand: ABB
Series: CMA Series – Control & Measurement Modules
The CMA series represents a family of compact control and measurement modules designed for industrial automation systems. These modules are engineered to acquire, condition, and transmit analog and digital signals reliably. They are widely used in distributed control systems, PLC cabinets, SCADA monitoring panels, and machine control enclosures where accurate signal processing is essential.
The CMA123 is a digital‑focused module within this series, offering robust digital signal acquisition and control capabilities suitable for a broad range of automated system requirements.
2) Product Overview
The ABB CMA123 (3DDE300403) is an industrial‑grade digital input/output (I/O) acquisition and conditioning module. It is tailored for systems requiring reliable real‑time digital signal monitoring and control. Typical signals handled by the CMA123 include discrete inputs from sensors, switches, and status contacts, as well as digital outputs to alarms, actuators, or relay drivers.
Designed for rugged industrial environments, this module ensures high immunity to electrical noise and environmental stressors, making it suitable for manufacturing, process control, and infrastructure automation systems.
3) Technical Parameters
| Parameter | Specification |
|---|---|
| Model | CMA123 / CMA 123 (3DDE300403) |
| Product Type | Digital I/O Acquisition Module |
| Series | CMA Control & Measurement Modules |
| Digital Inputs | Multiple discrete input channels (e.g., 8–16) |
| Digital Outputs | Multiple discrete output channels (e.g., 8–16) |
| Power Supply | 24 V DC |
| Power Consumption | ≤ 7 W |
| Communication | PLC Control Bus / Digital Interface |
| Mounting | DIN Rail (35 mm) / Panel Mount |
| Operating Temperature | -20 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5–95 % non‑condensing |
| Protection Rating | IP20 |
| Terminal Connection | Screw terminals |
| Dimensions (H × W × D) | 130 × 50 × 105 mm |
| Weight (kg) | 0.94 kg |
| Housing Material | Flame‑retardant industrial polymer |
4) Product Description
The CMA123 is engineered for discrete signal environments where accurate digital acquisition and control are required. It captures digital input signals (such as ON/OFF states or status changes) from field devices like proximity sensors, limit switches, pressure contacts, and safety interlocks. It also drives digital outputs to alert systems, pilot lamps, solenoid valves, and other output devices.
Internally, the module provides signal conditioning to avoid false triggering due to electrical noise or contact bounce. Its design supports both PLC‑based control logic and SCADA monitoring interfaces. The module’s housing and terminal arrangement support straightforward installation and maintenance in control cabinets.
5) Key Advantages
• High Digital Signal Accuracy: Ensures reliable acquisition of discrete inputs and generation of digital outputs.
• Industrial Reliability: Designed for harsh production environments with voltage spikes, vibration, and electrical noise.
• Compact & Modular: Space‑efficient design suitable for dense control cabinets and DIN rail mounting.
• Signal Conditioning: Built‑in filtering ensures clean digital transitions and avoids false triggers.
• Flexible Integration: Compatible with a variety of PLC platforms, control buses, and monitoring systems.
• Maintenance‑Friendly: Clear terminal labeling and modular design simplify wiring and servicing.
• Low Power Consumption: Efficient design with ≤ 7 W power usage.
• Broad Operating Conditions: Wide temperature and humidity tolerance for factory environments.
6) Typical Applications
• Machine automation discrete signal acquisition
• Conveyor, motor, and actuator status monitoring
• Production line safety and interlock systems
• Digital alarm and event signaling
• Distributed I/O panels for industrial PLCs
• Remote monitoring with SCADA systems
• Discrete output control for actuators and relays
• Process control systems requiring accurate digital signal interfaces
7) Five Related Models (CMA Series or Similar)
| Model | Function / Feature | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| CMA111 | Analog signal acquisition | 120 × 45 × 95 | 0.70 |
| CMA112 | Mixed analog/digital module | 120 × 45 × 100 | 0.75 |
| CMA121 | Mixed signal control module | 130 × 50 × 105 | 0.88 |
| CMA122 | Mixed analog/digital measurement | 130 × 50 × 105 | 0.90 |
| CMA124 | High‑speed digital interface module | 135 × 50 × 110 | 0.95 |
8) Five Popular ABB Models (Industrial Portfolio)
| Model | Product Type | Primary Feature / Rating | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| ACS580‑01‑12A6‑4 | Variable Frequency Drive | 5.5 kW | 358 × 152 × 203 | 6.5 |
| ACS880‑01‑017A‑4 | Drive Inverter | 17 kW | 220 × 120 × 180 | 3.6 |
| Emax 2 E2.2 | Air Circuit Breaker | 1600 A | 371 × 210 × 268 | 8.2 |
| Tmax XT4N | Molded Case Circuit Breaker | 250 A | 140 × 105 × 160 | 2.1 |
| AF16‑30‑10 | Contactor | 16 A | 90 × 55 × 78 | 0.42 |
9) Frequently Asked Questions (FAQ)
Q1: What is the main purpose of the CMA123 module?
A1: To acquire and condition multiple discrete input signals and drive digital outputs in industrial automation systems.
Q2: What types of signals does the CMA123 support?
A2: Digital input signals (e.g., ON/OFF states) and digital output signals for control actions.
Q3: What supply voltage does this module require?
A3: It operates on 24 V DC.
Q4: What are the typical applications of the CMA123?
A4: Machine automation, conveyor system monitoring, safety interlocks, and distributed I/O panels.
Q5: How is the module mounted?
A5: The module is designed for 35 mm DIN rail or panel mounting within control cabinets.
Q6: What environmental conditions can the CMA123 withstand?
A6: It operates reliably between -20 °C and +60 °C with 5–95 % non‑condensing humidity.
Q7: Does the module require special wiring tools?
A7: No; standard screw terminals and clear labeling make wiring straightforward.
Q8: Can it interface with PLCs?
A8: Yes, it is compatible with a range of PLC control systems.
Q9: What are the physical dimensions and weight?
A9: 130 × 50 × 105 mm and 0.94 kg.
Q10: What is the main advantage of using CMA123?
A10: It provides reliable, noise‑immune digital signal acquisition and control for industrial automation systems.