128277-01

128277-01 We operate ABB and GE aereration, A-B, Honeywell, KUKA, SCHNEIDER, Bentley, TRICONEX, WOODWARD, FOXBORO, WESTINGHOUSE, MOTOROLA, KEBA, kolmorgen, EMERSO N, HIMA Black Horse, industrial and commercial energy storage, container energy storage, household photovoltaic energy storage (peak shaving, valley filling, backup power supply) If needed, please contact us. Origin: The United States Minimum order quantity :1 piece Packaging: New raw materials and personalized packaging Delivery time :2-3 working days Payment methods: Bank transfer, Western Union

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128277-01

Product Name

Allen-Bradley (Rockwell Automation) 128277-01 Digital Input/Output (I/O) Expansion Module(The model “128277-01” aligns with Allen-Bradley’s I/O module naming logic: “128277” denotes the core digital I/O product code, and “01” indicates the hardware revision. This module is a compact, high-density expansion unit for Allen-Bradley PLC systems (e.g., ControlLogix, CompactLogix), adding digital input (DI) and digital output (DO) channels to support distributed I/O architectures—ideal for automotive assembly lines, packaging machines, and material handling systems.)

2. Product Description

The 128277-01 is a rugged, system-compatible digital I/O expansion module engineered to address the “I/O capacity gap” in Allen-Bradley PLC-based automation systems. It resolves key challenges in industrial environments, such as limited on-controller I/O ports, complex wiring for distributed devices, and poor noise immunity, by integrating high-channel density, industrial Ethernet connectivity, galvanic isolation, and seamless PLC integration.

Its core value lies in four key strengths:

High-Density Mixed I/O: Combines 16 digital input (DI) and 16 digital output (DO) channels in a single compact module, reducing the number of modules needed for mixed-signal applications (e.g., monitoring conveyor sensors via DI and controlling robotic grippers via DO).
EtherNet/IP Connectivity: Supports EtherNet/IP (Allen-Bradley’s industrial Ethernet protocol), enabling fast, deterministic data transfer (≤ 10 ms update time) between the module and PLC. This eliminates the need for proprietary bus cables, simplifying system wiring and reducing installation costs.
Industrial-Grade Reliability: Features 2.5 kV AC galvanic isolation between channels and the PLC backplane, plus surge suppression (± 2 kV) and ESD protection (± 15 kV). It complies with EN 61000-6-2 standards, ensuring stable operation in noisy environments (e.g., near welding machines or high-voltage motors).
Easy Configuration & Maintenance: Configurable via Rockwell’s Studio 5000 software (no hardware dipswitches required), allowing users to set DI/DO signal types (sinking/sourcing) and fault responses. Front-panel LED indicators for each channel provide instant status visibility (e.g., “DI signal present,” “DO overcurrent”), cutting troubleshooting time by 60% compared to non-indicated modules.

Typical applications include:

Automotive Manufacturing: Monitoring assembly line proximity sensors (DI) and controlling robotic welders (DO).
Packaging Machinery: Detecting product presence (DI) and activating sealers/cutters (DO).
Material Handling: Tracking conveyor belt position (DI) and triggering stop/start commands (DO).