ABB CMA121 3DDE300401 is an advanced industrial communication adapter module, engineered as an upgraded variant of the CMA120 series for seamless integration with ABB’s AC800M control system and System 800xA automation platform. This high-performance module serves as a universal protocol translator and data exchange hub, enabling bidirectional communication between ABB’s core control hardware, third-party devices, IoT platforms, and supervisory systems—making ABB CMA121 3DDE300401 indispensable for breaking down protocol barriers in complex, interconnected automation environments. As a flagship offering in ABB’s communication portfolio, ABB CMA121 3DDE300401 enhances data transmission reliability with ultra-low latency, supports advanced IoT protocols, and maintains backward compatibility with legacy systems. Its robust design and seamless integration with ABB’s engineering tools simplify deployment in new installations and legacy upgrades alike, solidifying ABB CMA121 3DDE300401 as a trusted solution for industries transitioning to smart, connected operations.
Bidirectional data translation (up to 4 concurrent protocols)
Rated Supply Voltage
24 VDC (±15%)
Operating Current
0.4 A – 0.7 A (typical)
Operating Temperature Range
-20°C to +65°C
Storage Temperature Range
-40°C to +85°C
Physical Dimensions (W×H×D)
100 mm × 160 mm × 60 mm
Weight
0.85 kg
Protection Class
IP20 (module level)
Communication Interfaces
2 x Gigabit Ethernet (RJ45), 1 x RS485 (Modbus RTU), 1 x USB-C (configuration)
Compliance Standards
IEC 61158, IEC 61010-1, EN 55022, CE, FCC
Latency
< 5 ms (protocol conversion)
Data Logging Capacity
Up to 1 GB (local storage for edge analytics)
Cybersecurity Features
Secure boot, encrypted communication (TLS 1.3), access control
Main Features and Advantages
IoT-Ready Protocol Support: ABB CMA121 3DDE300401 adds native OPC UA and MQTT support to ABB’s communication ecosystem, enabling seamless integration with cloud platforms (e.g., ABB Ability™, AWS IoT, Azure IoT) and industrial IoT (IIoT) networks. This feature empowers businesses to leverage real-time data for predictive maintenance, remote monitoring, and smart factory optimization—future-proofing automation systems for Industry 4.0.
Ultra-Low Latency and Multi-Protocol Concurrency: With a protocol conversion latency of less than 5 ms and support for up to 4 concurrent protocols, ABB CMA121 3DDE300401 ensures real-time synchronization of critical process data and control commands. This performance is critical for time-sensitive applications such as safety interlocking, precision process control, and high-speed manufacturing lines.
Enhanced Cybersecurity: ABB CMA121 3DDE300401 incorporates enterprise-grade cybersecurity features, including secure boot, TLS 1.3 encryption, and role-based access control, protecting communication links from unauthorized access, data breaches, and cyber threats. This aligns with global industrial security standards, ensuring the integrity of connected automation systems.
Seamless ABB Ecosystem Integration: Designed exclusively for ABB’s control platforms, ABB CMA121 3DDE300401 integrates plug-and-play with ABB’s engineering tools (Control Builder M, System 800xA Engineering) and I/O modules. It maintains backward compatibility with legacy ABB systems while supporting new ABB Ability™ cloud services, reducing integration complexity and operational costs.
Rugged Design and Edge Capabilities: Built to withstand harsh industrial environments, ABB CMA121 3DDE300401 features a wide operating temperature range (-20°C to +65°C), resistance to vibration and electromagnetic interference (EMI), and 1 GB of local storage for edge data logging. This allows for on-site data processing, reducing cloud bandwidth usage and enabling offline operation during network outages.
Application Fields
ABB CMA121 3DDE300401 is tailored for industries requiring secure, reliable communication between heterogeneous automation systems and IoT platforms. In process manufacturing (chemical, pharmaceutical, food and beverage), ABB CMA121 3DDE300401 connects ABB’s AC800M controllers with batch management systems, quality control devices, and cloud-based production analytics platforms, enabling real-time recipe adjustments and compliance reporting. The module’s OPC UA/MQTT support makes it ideal for oil and gas facilities, where it integrates offshore platform control systems with pipeline monitoring devices, remote SCADA systems, and predictive maintenance tools—withstanding extreme temperatures and harsh environmental conditions.
In power generation (coal-fired, gas, nuclear, and renewable), ABB CMA121 3DDE300401 links ABB’s turbine control systems with grid management platforms, solar/wind farm inverters, and energy management systems (EMS), supporting efficient power distribution and grid stability. Water and wastewater treatment plants rely on ABB CMA121 3DDE300401 to connect process control systems with third-party pump controllers, environmental sensors, and municipal IoT networks, ensuring regulatory compliance and resource optimization.
Manufacturing industries (automotive, aerospace, electronics) use ABB CMA121 3DDE300401 to integrate ABB robots, production line sensors, and enterprise resource planning (ERP) systems, enabling data-driven production optimization and flexible manufacturing. Its cybersecurity features and multi-protocol support also make it a key component in smart buildings and infrastructure, connecting building management systems with HVAC, lighting, and security devices for energy efficiency and occupant comfort.
Related Products
ABB CMA120 3DDE300400: Predecessor communication adapter, offering basic protocol support (no OPC UA/MQTT) for cost-sensitive applications requiring core functionality.
ABB CMA130 3DDE300402: Premium variant with 5G/Wi-Fi connectivity, designed for remote IoT deployments beyond ABB CMA121 3DDE300401’s wired capabilities.
ABB AC800M Controller (3BSC980004R784): Central processing unit optimized to interface with ABB CMA121 3DDE300401 for real-time data processing.
ABB TU830V1 3BSE013234R1: I/O termination unit, providing surge protection and organized wiring for ABB CMA121 3DDE300401 in distributed setups.
ABB Control Builder M Software: Engineering tool for configuring protocols, data mapping, and diagnosing ABB CMA121 3DDE300401.
ABB 3BSE018107R1: Profibus DP communication module, complementary to ABB CMA121 3DDE300401 for extended legacy network connectivity.
ABB Ability™ Connected Services: Cloud platform optimized for use with ABB CMA121 3DDE300401 for remote monitoring and analytics.
ABB 3BSE004197R1 (DI810): Digital input module, compatible with ABB CMA121 3DDE300401 for data acquisition from field sensors in mixed-protocol environments.
ABB 3DDE300403 (CMA140): Industrial Wi-Fi communication adapter, pairing with ABB CMA121 3DDE300401 for wireless data exchange in hard-to-reach locations.
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